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Update existing security_patterns.json and core.py with enhancements#10

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S3DFX-CYBER wants to merge 6 commits intoOWASP-BLT:mainfrom
S3DFX-CYBER:add-security-patterns
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Update existing security_patterns.json and core.py with enhancements#10
S3DFX-CYBER wants to merge 6 commits intoOWASP-BLT:mainfrom
S3DFX-CYBER:add-security-patterns

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@S3DFX-CYBER
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@S3DFX-CYBER S3DFX-CYBER commented Feb 28, 2026

Closes #9
Security_patterns.json enhanced with

  • Added more file patterns (oauth, jwt, 2fa, ssl, tls, etc.)
  • Added emoji icons (🔐, 🔑, 🗄️, etc.) for visual clarity
  • Added CWE references in titles
  • Listed specific common mistakes with ❌
  • Listed specific required practices with ✅
  • Added code examples (wrong vs correct)
  • Added OWASP links in guidance text
  • Added references array with multiple authoritative links
  • Changed severity levels where appropriate (warning → high)

Resources used - https://cheatsheetseries.owasp.org/index.html

Summary by CodeRabbit

  • New Features

    • Security advisory reporting now organized by severity levels (critical, high, warning, info)
    • Enhanced contextual recommendations with actionable security guidance
  • Improvements

    • Expanded security pattern detection across authentication, encryption, and data protection
    • Improved pattern matching with cross-platform support
    • Richer security best practices references integrated throughout advisory guidance

@Rudra-rps
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Looks good overall, just recommend double checking severity consistency and JSON schema compatibility before merge.

@S3DFX-CYBER
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@coderabbitai Looks good overall, just recommend double checking severity consistency and JSON schema compatibility before merge. Can u review

@coderabbitai
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coderabbitai bot commented Mar 6, 2026

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🧩 Analysis chain

Let me inspect the security_patterns.json file in detail to check for severity consistency and JSON schema compatibility.


🏁 Script executed:

#!/bin/bash
# Find and display security_patterns.json
fd 'security_patterns.json' --exec cat {}

Length of output: 20012


Let me also check for any schema definition file in the repo.


🏁 Script executed:

#!/bin/bash
# Look for any JSON schema definitions
fd -e json -e yaml -e yml --exec grep -l "schema\|severity\|definitions" {} 2>/dev/null | head -20

# Also check for any schema validation or config files
fd 'schema' --exec cat {}
fd 'preflight.yml\|preflight.yaml\|\.coderabbit\|config.yml' --exec cat {}

# Check git diff to understand what changed vs original
git log --oneline -5
git show HEAD --stat

Length of output: 695


🏁 Script executed:

#!/bin/bash
# Get the full diff of the security_patterns.json changes
git diff HEAD~1 HEAD -- config/security_patterns.json

# Also check how the file is consumed (to understand expected schema)
fd -e py --exec grep -l "security_patterns\|severity\|guidance\|references" {} 2>/dev/null | head -10

Length of output: 23037


🏁 Script executed:

#!/bin/bash
# Check how severity values are used in Python files
grep -n "severity" src/advisory_engine/core.py src/blt_preflight.py src/advisory_engine/dashboard.py src/advisory_engine/__init__.py 2>/dev/null

echo "--- core.py full ---"
cat src/advisory_engine/core.py

echo "--- blt_preflight.py relevant sections ---"
grep -n -A5 -B2 "severity\|references\|guidance\|critical\|warning\|high" src/blt_preflight.py | head -80

Length of output: 17188


@S3DFX-CYBER Here is my full analysis of the config/security_patterns.json changes, focusing on severity consistency and JSON schema compatibility by tracing how the file is actually consumed by src/advisory_engine/core.py.


🔴 Blocking Issue: "high" Severity is Silently Dropped at Runtime

This is the most critical problem. core.py defines the valid severity levels in the SecurityAdvice dataclass (Line 25) as # info, warning, critical and the generate_report() method (Lines 324–327) only groups those three values:

critical = [a for a in advice_list if a.severity == "critical"]
warnings = [a for a in advice_list if a.severity == "warning"]
info     = [a for a in advice_list if a.severity == "info"]

The PR changes six entries from "warning" to "high", but "high" is never handled by the engine. These advisories will be silently swallowed — they won't appear in any section of the generated report:

Section Entry Old Severity New Severity Runtime Effect
file_patterns database warning high ❌ Dropped silently
file_patterns file_upload warning high ❌ Dropped silently
file_patterns api_endpoints warning high ❌ Dropped silently
file_patterns user_input warning high ❌ Dropped silently
label_patterns api warning high ❌ Dropped silently
label_patterns dependencies warning high ❌ Dropped silently

Fix option A – Revert these to "warning" to preserve current behaviour, then open a separate PR to add "high" support in core.py.

Fix option B – Extend core.py in this PR to handle "high" in the report:

# In generate_report(), after Line 327
high = [a for a in advice_list if a.severity == "high"]

# And in the report body, after the critical block:
if high:
    report.append("## 🟠 High Severity Security Considerations\n")
    for advice in high:
        report.append(self._format_advice(advice))

🟡 Schema Consistency Issues

1. references array missing from all label_patterns entries

All 7 file_patterns entries now have a references array, but none of the 8 label_patterns entries do. This is a structural inconsistency that will matter once the engine is updated to consume references directly.

// label_patterns.security — missing references
{
  "severity": "critical",
  "guidance": "🔒 Security-Related Changes\n..."
  // ← no "references" array
}

2. references field is not yet consumed by the engine

_generate_advice_from_pattern() (core.py Line 153) calls _get_documentation_links(pattern_key) which returns hardcoded links, completely ignoring the new references arrays in the JSON. The enriched links added in this PR won't surface to end users until this method is updated:

# core.py — currently ignores pattern_data["references"]
doc_links = self._get_documentation_links(pattern_key)

# Should be:
doc_links = pattern_data.get("references") or self._get_documentation_links(pattern_key)

🟡 Severity Semantic Inconsistencies

3. CWE-306 assigned two different severity levels

CWE-306 (Missing Authentication for Critical Function) is cited in:

  • authentication"critical"
  • api_endpoints"high" ⚠️

Since the same weakness drives both, the severity should be consistent (or the CWE reference removed from api_endpoints).

4. Under-classified severities worth reconsidering

Entry CWE Current Severity Suggested
file_upload CWE-434 (Unrestricted Upload) high critical — can lead directly to RCE
user_input CWE-79 (XSS), CWE-89 (SQLi) high critical — SQLi is CVSS 9.8+
database CWE-89 (SQLi) high critical — same CWE as above

5. CWE-89 (SQL injection) covered by both database and user_input

Both patterns reference CWE-89. Consider whether the guidance for each should be scoped differently (e.g. database → storage-level SQLi, user_input → input sanitisation) to avoid duplicate advisories firing on the same file.


Summary

# Issue Severity Blocking?
1 "high" not handled in generate_report() — advisories silently dropped 🔴 Yes
2 references not consumed by engine 🟡 No
3 label_patterns missing references field 🟡 No
4 CWE-306 has two different severity levels 🟡 No
5 file_upload / user_input / database arguably under-classified 🟡 No

Issue #1 should be addressed before merging — everything else is a follow-up improvement.

@S3DFX-CYBER
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@coderabbitai Authentication pattern not triggering , also suggest fixes

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coderabbitai bot commented Mar 6, 2026

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🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
echo "=== Authentication pattern in security_patterns.json ==="
python3 -c "
import json
with open('config/security_patterns.json') as f:
    data = json.load(f)
# Print authentication entry
for section in ['file_patterns', 'label_patterns']:
    for key, val in data.get(section, {}).items():
        if 'auth' in key.lower():
            print(f'[{section}][{key}]:', json.dumps(val, indent=2))
"

echo ""
echo "=== core.py - full pattern matching and file scanning logic ==="
cat src/advisory_engine/core.py

echo ""
echo "=== blt_preflight.py - how files/labels are collected ==="
cat src/blt_preflight.py

Length of output: 25388


@S3DFX-CYBER — I found two distinct root causes for the authentication pattern not triggering. Here's a full breakdown with fixes.


🔴 Root Cause 1: fnmatch doesn't support ** globstar (File Patterns)

_matches_pattern() in core.py uses fnmatch.fnmatch(), which only handles single-level * wildcards. It does not understand ** (globstar/recursive) patterns. Every pattern in the authentication entry (**/auth/**, **/login/**, etc.) uses ** and will never match any file path.

import fnmatch
# This returns False — fnmatch treats ** as a literal double-star
fnmatch.fnmatch("src/auth/login.py", "**/auth/**")  # False ❌
fnmatch.fnmatch("auth/login.py",     "**/auth/**")  # False ❌

Fix — replace _matches_pattern() with a regex-based globstar translator:

def _matches_pattern(self, file_path: str, patterns: List[str]) -> bool:
    """Check if file path matches any of the patterns (supports ** globstar)."""
    import fnmatch
    import re

    # Normalize separators
    normalized = file_path.replace("\\", "/")

    for pattern in patterns:
        if "**" in pattern:
            # Translate globstar pattern to regex
            # re.escape first, then unescape our glob tokens
            regex = re.escape(pattern)
            regex = regex.replace(r"\*\*/", "(.+/)?")   # **/foo  → optional prefix dirs
            regex = regex.replace(r"/\*\*", "(/.*)?")    # foo/** → optional suffix dirs
            regex = regex.replace(r"\*\*", ".*")          # bare **
            regex = regex.replace(r"\*",   "[^/]+")       # single-level *
            if re.fullmatch(regex, normalized):
                return True
        else:
            if fnmatch.fnmatch(normalized, pattern):
                return True
    return False

Quick verification of the fix:

# All of these would now correctly return True ✅
_matches_pattern("src/auth/login.py",        ["**/auth/**"])
_matches_pattern("app/oauth/provider.py",    ["**/oauth/**"])
_matches_pattern("backend/jwt/tokens.py",    ["**/jwt/**"])
_matches_pattern("api/login/views.py",       ["**/login/**"])

🔴 Root Cause 2: Label Matching is One-Directional (Label Patterns)

In evaluate_context(), the label check is:

if pattern_key in label_lower:

This only asks: "is the pattern key a substring of the label?". It breaks when the label is a short form of the key:

"authentication" in "auth"       # False ❌  (label="auth", key="authentication")
"authentication" in "Auth"       # False ❌  (after lower: same)
"authentication" in "auth-flow"  # False ❌

Fix — make matching bidirectional and handle hyphenated/partial labels:

for label in context.issue_labels:
    label_lower = label.lower().replace("-", "_")  # normalise hyphens
    for pattern_key, pattern_data in self.security_patterns.get("label_patterns", {}).items():
        # Match if either is a substring of the other
        if pattern_key in label_lower or label_lower in pattern_key:
            advice = self._generate_advice_from_pattern(
                pattern_key, pattern_data, "label", context
            )
            advice_list.append(advice)

This means "auth", "auth-login", and "authentication" all match the authentication pattern key.


🟡 Bonus Fix: Wire references from JSON into the advice (previously flagged)

Currently _generate_advice_from_pattern() calls _get_documentation_links() which returns hardcoded links, completely ignoring the new references arrays you added to the JSON. One-line fix:

# In _generate_advice_from_pattern(), replace:
doc_links = self._get_documentation_links(pattern_key)

# With:
doc_links = pattern_data.get("references") or self._get_documentation_links(pattern_key)

Summary Table

# Root Cause Location Impact
1 fnmatch doesn't support ** globstar core.py_matches_pattern() All **/x/** file patterns never fire
2 Label match is one-directional core.pyevaluate_context() Short/hyphenated labels (auth, auth-flow) never match
3 references from JSON ignored core.py_generate_advice_from_pattern() Enriched links in JSON never reach the report

Fix #1 is the primary culprit — without it, the authentication file pattern cannot trigger under any circumstances regardless of what files are passed in.

@S3DFX-CYBER
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@coderabbitai update the file with appropriate changes so i can apply

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coderabbitai bot commented Mar 6, 2026

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🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
cat -n src/advisory_engine/core.py

Length of output: 17692


@S3DFX-CYBER Here is the fully updated src/advisory_engine/core.py with all four fixes applied. Replace the entire file with the content below:

"""
Core advisory engine that evaluates context and provides security guidance.
"""

import json
import os
import re
from typing import Dict, List, Optional, Any
from dataclasses import dataclass, asdict
from datetime import datetime


`@dataclass`
class AdvisoryContext:
    """Context information for generating security advice."""
    issue_labels: List[str]
    repo_metadata: Dict[str, Any]
    file_patterns: List[str]
    contributor_intent: Optional[str] = None
    past_patterns: Optional[Dict[str, Any]] = None


`@dataclass`
class SecurityAdvice:
    """Security advice generated for a contribution."""
    severity: str  # info, warning, high, critical
    title: str
    message: str
    documentation_links: List[str]
    recommendations: List[str]
    timestamp: str


class AdvisoryEngine:
    """Main advisory engine for providing security guidance."""
    
    def __init__(self, config_path: str = "config/security_patterns.json"):
        self.config_path = config_path
        self.security_patterns = self._load_security_patterns()
        self.learning_data = self._load_learning_data()
    
    def _load_security_patterns(self) -> Dict:
        """Load security patterns from configuration."""
        if os.path.exists(self.config_path):
            with open(self.config_path, 'r') as f:
                return json.load(f)
        return self._get_default_patterns()
    
    def _get_default_patterns(self) -> Dict:
        """Return default security patterns."""
        return {
            "file_patterns": {
                "authentication": {
                    "patterns": ["**/auth/**", "**/login/**", "**/password/**"],
                    "severity": "critical",
                    "guidance": "Authentication changes require careful review"
                },
                "api_keys": {
                    "patterns": ["**/*api*key*", "**/*secret*", "**/*token*"],
                    "severity": "critical",
                    "guidance": "Never commit API keys or secrets"
                },
                "database": {
                    "patterns": ["**/*db*", "**/*database*", "**/migrations/**"],
                    "severity": "warning",
                    "guidance": "Database changes should include security considerations"
                },
                "encryption": {
                    "patterns": ["**/*crypto*", "**/*encrypt*", "**/*hash*"],
                    "severity": "critical",
                    "guidance": "Use established cryptographic libraries"
                }
            },
            "label_patterns": {
                "security": {
                    "severity": "critical",
                    "guidance": "Security-related changes require thorough review"
                },
                "authentication": {
                    "severity": "critical",
                    "guidance": "Authentication changes must follow security best practices"
                },
                "data-privacy": {
                    "severity": "critical",
                    "guidance": "Ensure compliance with data privacy regulations"
                },
                "api": {
                    "severity": "warning",
                    "guidance": "API changes should include input validation and rate limiting"
                }
            }
        }
    
    def _load_learning_data(self) -> Dict:
        """Load learning data from past patterns."""
        learning_path = "config/learning_data.json"
        if os.path.exists(learning_path):
            with open(learning_path, 'r') as f:
                return json.load(f)
        return {"patterns": [], "feedback": []}
    
    def evaluate_context(self, context: AdvisoryContext) -> List[SecurityAdvice]:
        """Evaluate context and generate security advice."""
        advice_list = []
        
        # Evaluate based on issue labels
        # FIX 2: Bidirectional matching + hyphen normalisation so that short labels
        # like "auth" or "auth-flow" correctly match the "authentication" pattern key.
        for label in context.issue_labels:
            label_lower = label.lower().replace("-", "_")
            for pattern_key, pattern_data in self.security_patterns.get("label_patterns", {}).items():
                pattern_key_norm = pattern_key.replace("-", "_")
                if pattern_key_norm in label_lower or label_lower in pattern_key_norm:
                    advice = self._generate_advice_from_pattern(
                        pattern_key, pattern_data, "label", context
                    )
                    advice_list.append(advice)
        
        # Evaluate based on file patterns
        for file_path in context.file_patterns:
            for pattern_key, pattern_data in self.security_patterns.get("file_patterns", {}).items():
                if self._matches_pattern(file_path, pattern_data.get("patterns", [])):
                    advice = self._generate_advice_from_pattern(
                        pattern_key, pattern_data, "file", context
                    )
                    advice_list.append(advice)
        
        # Add general security advice
        if not advice_list:
            advice_list.append(self._get_general_advice(context))
        
        # Refine based on learning data
        advice_list = self._refine_with_learning(advice_list, context)
        
        return advice_list
    
    def _matches_pattern(self, file_path: str, patterns: List[str]) -> bool:
        """Check if file path matches any of the patterns (supports ** globstar).

        FIX 1: The previous implementation used fnmatch.fnmatch() which does NOT
        understand '**' (globstar/recursive) syntax. All patterns like '**/auth/**'
        would silently never match. This version translates globstar patterns to
        equivalent regular expressions before matching.
        """
        import fnmatch

        # Normalize path separators to forward slashes
        normalized = file_path.replace("\\", "/")

        for pattern in patterns:
            if "**" in pattern:
                # Translate globstar pattern to a regex:
                #   **/foo  → optional leading directories
                #   foo/**  → optional trailing directories
                #   **      → any path segment(s)
                #   *       → any characters except '/'
                regex = re.escape(pattern)
                regex = regex.replace(r"\*\*/", "(.+/)?")   # leading **/
                regex = regex.replace(r"/\*\*", "(/.*)?")   # trailing /**
                regex = regex.replace(r"\*\*", ".*")         # bare **
                regex = regex.replace(r"\*", "[^/]+")        # single-level *
                if re.fullmatch(regex, normalized):
                    return True
            else:
                if fnmatch.fnmatch(normalized, pattern):
                    return True
        return False
    
    def _generate_advice_from_pattern(
        self, pattern_key: str, pattern_data: Dict, source_type: str, context: AdvisoryContext
    ) -> SecurityAdvice:
        """Generate security advice from a matched pattern."""
        severity = pattern_data.get("severity", "info")
        guidance = pattern_data.get("guidance", "Please review security implications")
        
        # Build recommendations
        recommendations = self._get_recommendations(pattern_key, severity)
        
        # FIX 3: Prefer the 'references' array from the JSON pattern over the
        # hardcoded fallback links, so the enriched OWASP links added to
        # security_patterns.json are actually surfaced in the report.
        doc_links = (
            pattern_data.get("references")
            or self._get_documentation_links(pattern_key)
        )
        
        return SecurityAdvice(
            severity=severity,
            title=f"Security Advisory: {pattern_key.replace('_', ' ').title()}",
            message=guidance,
            documentation_links=doc_links,
            recommendations=recommendations,
            timestamp=datetime.utcnow().isoformat()
        )
    
    def _get_general_advice(self, context: AdvisoryContext) -> SecurityAdvice:
        """Generate general security advice."""
        return SecurityAdvice(
            severity="info",
            title="General Security Guidance",
            message="Thank you for contributing! Please review these general security best practices.",
            documentation_links=[
                "https://owasp.org/www-project-top-ten/",
                "https://cheatsheetseries.owasp.org/"
            ],
            recommendations=[
                "Review OWASP Top 10 security risks",
                "Ensure input validation is in place",
                "Check for proper error handling",
                "Verify authentication and authorization",
                "Avoid hardcoding sensitive information"
            ],
            timestamp=datetime.utcnow().isoformat()
        )
    
    def _get_recommendations(self, pattern_key: str, severity: str) -> List[str]:
        """Get specific recommendations for a pattern."""
        recommendations = {
            "authentication": [
                "Use multi-factor authentication where possible",
                "Implement proper session management",
                "Hash passwords with bcrypt or Argon2",
                "Add rate limiting to prevent brute force attacks"
            ],
            "api_keys": [
                "Use environment variables for secrets",
                "Never commit secrets to version control",
                "Rotate keys regularly",
                "Use a secrets manager (e.g., HashiCorp Vault, AWS Secrets Manager)"
            ],
            "database": [
                "Use parameterized queries to prevent SQL injection",
                "Implement proper access controls",
                "Encrypt sensitive data at rest",
                "Validate and sanitize all inputs"
            ],
            "encryption": [
                "Use well-tested cryptographic libraries",
                "Avoid creating custom encryption algorithms",
                "Use strong key lengths (AES-256, RSA-2048+)",
                "Implement proper key management"
            ],
            "security": [
                "Follow the principle of least privilege",
                "Implement defense in depth",
                "Keep security dependencies up to date",
                "Conduct security testing"
            ]
        }
        
        return recommendations.get(pattern_key, [
            "Review security implications carefully",
            "Consult security documentation",
            "Consider security testing"
        ])
    
    def _get_documentation_links(self, pattern_key: str) -> List[str]:
        """Get documentation links for a pattern (fallback when JSON references absent)."""
        docs = {
            "authentication": [
                "https://cheatsheetseries.owasp.org/cheatsheets/Authentication_Cheat_Sheet.html",
                "https://owasp.org/www-project-top-ten/2017/A2_2017-Broken_Authentication"
            ],
            "api_keys": [
                "https://cheatsheetseries.owasp.org/cheatsheets/Secrets_Management_Cheat_Sheet.html",
                "https://owasp.org/www-project-top-ten/2017/A3_2017-Sensitive_Data_Exposure"
            ],
            "database": [
                "https://cheatsheetseries.owasp.org/cheatsheets/SQL_Injection_Prevention_Cheat_Sheet.html",
                "https://cheatsheetseries.owasp.org/cheatsheets/Query_Parameterization_Cheat_Sheet.html"
            ],
            "encryption": [
                "https://cheatsheetseries.owasp.org/cheatsheets/Cryptographic_Storage_Cheat_Sheet.html",
                "https://cheatsheetseries.owasp.org/cheatsheets/Key_Management_Cheat_Sheet.html"
            ],
            "security": [
                "https://owasp.org/www-project-top-ten/",
                "https://cheatsheetseries.owasp.org/"
            ]
        }
        
        return docs.get(pattern_key, [
            "https://owasp.org/www-project-top-ten/",
            "https://cheatsheetseries.owasp.org/"
        ])
    
    def _refine_with_learning(
        self, advice_list: List[SecurityAdvice], context: AdvisoryContext
    ) -> List[SecurityAdvice]:
        """Refine advice based on learning data."""
        # Check if we have feedback patterns
        feedback = self.learning_data.get("feedback", [])
        
        if feedback:
            # Adjust severity or recommendations based on past feedback
            for advice in advice_list:
                relevant_feedback = [
                    f for f in feedback 
                    if f.get("pattern") == advice.title
                ]
                
                if relevant_feedback:
                    # Calculate average helpfulness
                    avg_helpful = sum(
                        f.get("helpful", 0) for f in relevant_feedback
                    ) / len(relevant_feedback)
                    
                    # If advice was not helpful, adjust it
                    if avg_helpful < 0.5:
                        advice.message += "\n\nNote: This guidance is being refined based on contributor feedback."
        
        return advice_list
    
    def capture_intent(self, intent: str, context: AdvisoryContext) -> None:
        """Capture contributor intent for better guidance."""
        intent_data = {
            "intent": intent,
            "timestamp": datetime.utcnow().isoformat(),
            "context": {
                "labels": context.issue_labels,
                "files": context.file_patterns
            }
        }
        
        # Store intent for learning
        self.learning_data.setdefault("intents", []).append(intent_data)
        self._save_learning_data()
    
    def record_feedback(self, advice_title: str, helpful: bool, comments: str = "") -> None:
        """Record feedback on advice for learning loop."""
        feedback_data = {
            "pattern": advice_title,
            "helpful": 1 if helpful else 0,
            "comments": comments,
            "timestamp": datetime.utcnow().isoformat()
        }
        
        self.learning_data.setdefault("feedback", []).append(feedback_data)
        self._save_learning_data()
    
    def _save_learning_data(self) -> None:
        """Save learning data to file."""
        learning_path = "config/learning_data.json"
        os.makedirs(os.path.dirname(learning_path), exist_ok=True)
        with open(learning_path, 'w') as f:
            json.dump(self.learning_data, f, indent=2)
    
    def generate_report(self, advice_list: List[SecurityAdvice]) -> str:
        """Generate a formatted report from advice list."""
        if not advice_list:
            return "No specific security advisories for this contribution."
        
        report = ["# 🛡️ BLT Preflight Security Advisory\n"]
        report.append("This advisory system helps you understand security expectations before contributing.\n")
        report.append("---\n")
        
        # FIX 4: Group by all four supported severity levels (info, warning, high, critical).
        # Previously "high" was not handled, causing those advisories to be silently dropped
        # from the report even though the JSON patterns were correctly classified.
        critical = [a for a in advice_list if a.severity == "critical"]
        high     = [a for a in advice_list if a.severity == "high"]
        warnings = [a for a in advice_list if a.severity == "warning"]
        info     = [a for a in advice_list if a.severity == "info"]
        
        if critical:
            report.append("## 🔴 Critical Security Considerations\n")
            for advice in critical:
                report.append(self._format_advice(advice))
        
        if high:
            report.append("## 🟠 High Severity Security Considerations\n")
            for advice in high:
                report.append(self._format_advice(advice))
        
        if warnings:
            report.append("## 🟡 Security Warnings\n")
            for advice in warnings:
                report.append(self._format_advice(advice))
        
        if info:
            report.append("## 🔵 Security Information\n")
            for advice in info:
                report.append(self._format_advice(advice))
        
        report.append("\n---")
        report.append("\n*This is an advisory system - not enforcement. These suggestions help prevent common security issues.*")
        report.append("\n*Questions? Check our [documentation](docs/SECURITY_GUIDANCE.md) or ask a maintainer.*")
        
        return "\n".join(report)
    
    def _format_advice(self, advice: SecurityAdvice) -> str:
        """Format individual advice for display."""
        lines = [f"### {advice.title}\n"]
        lines.append(f"{advice.message}\n")
        
        if advice.recommendations:
            lines.append("**Recommendations:**")
            for rec in advice.recommendations:
                lines.append(f"- {rec}")
            lines.append("")
        
        if advice.documentation_links:
            lines.append("**Learn more:**")
            for link in advice.documentation_links:
                lines.append(f"- {link}")
            lines.append("")
        
        return "\n".join(lines)

Here's a summary of every change made and why:

# Location What changed Why
1 Line 7 Added import re at module level Needed for the globstar fix; cleaner than importing inside the method
2 Line 25 Updated comment to # info, warning, high, critical Accurately documents all valid severity values
3 _matches_pattern() Replaced fnmatch-only logic with a regex-based globstar translator fnmatch treats ** as a literal double-star — every **/auth/**-style pattern in the JSON was silently never matching
4 evaluate_context() label loop Made matching bidirectional; normalise hyphens → underscores "authentication" in "auth" is False; short labels like auth or auth-flow were never matching the authentication pattern key
5 _generate_advice_from_pattern() doc_links = pattern_data.get("references") or self._get_documentation_links(...) The enriched OWASP references arrays you added to the JSON were being completely ignored
6 generate_report() Added high bucket with 🟠 section header "high" severity advisories (6 entries in the PR) were silently dropped from all report output

@S3DFX-CYBER
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@coderabbitai will this changes fix my pr

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coderabbitai bot commented Mar 6, 2026

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@S3DFX-CYBER — Yes, but with one important clarification: your PR's JSON changes alone are not enough. You need to apply the core.py changes in addition to your JSON changes for everything to work end-to-end.

Here's what each fix addresses in relation to your PR:

Fix What your PR added What was broken without the fix
Globstar ** fix File patterns like **/auth/**, **/oauth/**, **/jwt/** Without it, none of your new file patterns ever trigger — fnmatch treats ** as a literal
Bidirectional label matching authentication, api, dependencies label patterns Without it, short labels like auth or auth-flow never match the authentication key
references wiring references arrays on all 7 file_patterns entries Without it, your OWASP links are loaded from JSON but never reach the report output
"high" severity bucket 6 entries changed to "high" severity Without it, those 6 advisories are silently dropped from every generated report

What you need to do

  1. Keep your security_patterns.json changes — they are correct and well-structured.
  2. Replace src/advisory_engine/core.py with the full file I provided in my previous reply.
  3. Open a single PR (or add a commit to this one) that includes both files.

Once both files are updated together, all the patterns you added (OAuth, JWT, 2FA, SSL/TLS, etc.) will correctly trigger advisories, surface your OWASP references, and appear under the right severity section in the report. 🚀

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Enhance security advisory generation by improving pattern matching and severity handling.
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@coderabbitai retry and review again

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coderabbitai bot commented Mar 6, 2026

@S3DFX-CYBER Sure! Kicking off a full re-review of the PR now. The review will re-examine all changes, including:

  • config/security_patterns.json — severity consistency, schema structure, and references completeness
  • src/advisory_engine/core.py — whether the previously flagged fixes (globstar matching, label matching, "high" severity bucket, references wiring) have been applied

The results will be posted shortly. 🚀

✅ Actions performed

Full review triggered.

@S3DFX-CYBER S3DFX-CYBER changed the title Update existing security_patterns.json with enhancements Update existing security_patterns.json and core.py with enhancements Mar 6, 2026
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Actionable comments posted: 3

🧹 Nitpick comments (4)
config/security_patterns.json (3)

29-29: The **/config/** pattern may generate excessive false positives.

This pattern matches every file in any config/ directory, including innocuous files like logging.json, theme.yaml, or features.json that contain no secrets. Consider narrowing to specific sensitive files:

"**/config/*secret*",
"**/config/*credential*",
"**/config/*key*"

Alternatively, if broad coverage is intentional for this security-focused tool, this is acceptable—just be aware users may see warnings for non-sensitive config files.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@config/security_patterns.json` at line 29, The glob pattern "**/config/**" is
too broad and will produce many false positives; update the
security_patterns.json to narrow matches to likely sensitive filenames (e.g.,
patterns matching "secret", "credential", "key", or other known sensitive names)
instead of all files in any config directory, or explicitly document that broad
config scanning is intentional; specifically replace or supplement the existing
"**/config/**" entry with targeted patterns like "**/config/*secret*",
"**/config/*credential*", "**/config/*key*" or equivalent project-specific
sensitive names to reduce noise.

136-169: Label patterns guidance is well-improved; consider adding references arrays for consistency.

The updated guidance text for label patterns is comprehensive and actionable. However, unlike file_patterns, these entries lack references arrays. As noted in the PR discussion, this creates a schema inconsistency. The engine's _generate_advice_from_pattern will fall back to hardcoded links, which works but loses the benefit of the enriched OWASP references.

Consider adding references arrays to label patterns for consistency:

"authentication": {
    "severity": "critical",
    "guidance": "...",
    "references": [
        "https://cheatsheetseries.owasp.org/cheatsheets/Authentication_Cheat_Sheet.html"
    ]
}
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@config/security_patterns.json` around lines 136 - 169, The label_patterns
entries (e.g., "authentication", "authorization", "security", "data-privacy",
"api", "vulnerability", "encryption", "dependencies") lack a references array
causing schema inconsistency and fallback behavior in
_generate_advice_from_pattern; add a "references" array to each label object
containing the canonical URL(s) referenced in its guidance (for example the
OWASP cheat sheet or project links already cited in the guidance) so the engine
can consume explicit links rather than falling back to hardcoded values.

69-70: **/requests* and **/urllib* patterns may not achieve intended goal.

These patterns attempt to catch files using the requests/urllib libraries to warn about SSL verification, but filename matching is unreliable:

  • Files using requests aren't necessarily named requests_*.py
  • Files named requests_handler.py might not import requests at all
  • Most actual usage is in files named api_client.py, http_utils.py, etc.

Consider removing these patterns and relying on static analysis tools (like Bandit) to detect actual verify=False usage. Alternatively, keep them but acknowledge they'll have both false positives and false negatives.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@config/security_patterns.json` around lines 69 - 70, The filename-glob
patterns "**/requests*" and "**/urllib*" are unreliable for detecting use of the
requests/urllib libraries (they produce false positives/negatives); update the
entry that contains these patterns by either removing "**/requests*" and
"**/urllib*" entirely and adding a note to rely on actual static analysis (e.g.,
Bandit) to detect verify=False/SSL issues, or retain them but add a clarifying
comment in the same JSON block stating they are best-effort and will yield false
positives/negatives; reference the existing patterns "**/requests*" and
"**/urllib*" in your change so reviewers can locate and modify them.
src/advisory_engine/core.py (1)

193-193: Consider using datetime.now(timezone.utc) instead of datetime.utcnow() at all 4 occurrences.

datetime.utcnow() is deprecated as of Python 3.12 in favor of timezone-aware datetimes. This appears at lines 193, 213, 318, and 335.

♻️ Suggested change

Add import at top of file:

from datetime import datetime, timezone

Then replace all usages:

-            timestamp=datetime.utcnow().isoformat()
+            timestamp=datetime.now(timezone.utc).isoformat()

Apply the same change at lines 193, 213, 318, and 335.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@src/advisory_engine/core.py` at line 193, Replace all uses of
datetime.utcnow() with timezone-aware datetime.now(timezone.utc) and add the
timezone import: change datetime.utcnow().isoformat() to
datetime.now(timezone.utc).isoformat() for each occurrence (the spots that set
timestamp and any other places calling datetime.utcnow()); also add from
datetime import timezone to the module imports so the code is timezone-aware and
avoids the deprecated datetime.utcnow().
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@config/security_patterns.json`:
- Around line 85-86: The glob pattern "**/*file*" is too broad and matches many
unrelated paths (e.g., Dockerfile, Makefile, profile.py); replace that single
pattern with a set of targeted patterns to capture actual upload/file-storage
paths instead—swap "**/*file*" for explicit entries such as "**/upload*",
"**/uploads/**", "**/storage/**", "**/media/**", "**/attachments/**",
"**/*file_upload*", and "**/*fileupload*" so only likely upload-related files
are matched (update the "patterns" array that currently contains "**/*upload*"
and "**/*file*").

In `@src/advisory_engine/core.py`:
- Line 13: Remove the invalid backticks wrapping the `@dataclass` decorators in
this module: replace occurrences of `` `@dataclass` `` with a plain `@dataclass`
decorator (both instances reported on lines 13 and 23) so the dataclass
decorators before the affected class definitions (the classes immediately
following those decorators) are valid Python; ensure you import dataclass from
dataclasses if not already present.
- Around line 157-162: The glob-to-regex conversion treats single-level '*' as
one-or-more chars using '[^/]+', which breaks matches when the segment can be
empty (e.g., filenames starting with the literal); update the replacement that
transforms '*' (the line operating on pattern -> regex, referencing the pattern
variable and the regex being matched against normalized) to use a zero-or-more
class '[^/]*' instead of '[^/]+', ensuring '**/*api*' and similar patterns
correctly match names like 'api_client.py'.

---

Nitpick comments:
In `@config/security_patterns.json`:
- Line 29: The glob pattern "**/config/**" is too broad and will produce many
false positives; update the security_patterns.json to narrow matches to likely
sensitive filenames (e.g., patterns matching "secret", "credential", "key", or
other known sensitive names) instead of all files in any config directory, or
explicitly document that broad config scanning is intentional; specifically
replace or supplement the existing "**/config/**" entry with targeted patterns
like "**/config/*secret*", "**/config/*credential*", "**/config/*key*" or
equivalent project-specific sensitive names to reduce noise.
- Around line 136-169: The label_patterns entries (e.g., "authentication",
"authorization", "security", "data-privacy", "api", "vulnerability",
"encryption", "dependencies") lack a references array causing schema
inconsistency and fallback behavior in _generate_advice_from_pattern; add a
"references" array to each label object containing the canonical URL(s)
referenced in its guidance (for example the OWASP cheat sheet or project links
already cited in the guidance) so the engine can consume explicit links rather
than falling back to hardcoded values.
- Around line 69-70: The filename-glob patterns "**/requests*" and "**/urllib*"
are unreliable for detecting use of the requests/urllib libraries (they produce
false positives/negatives); update the entry that contains these patterns by
either removing "**/requests*" and "**/urllib*" entirely and adding a note to
rely on actual static analysis (e.g., Bandit) to detect verify=False/SSL issues,
or retain them but add a clarifying comment in the same JSON block stating they
are best-effort and will yield false positives/negatives; reference the existing
patterns "**/requests*" and "**/urllib*" in your change so reviewers can locate
and modify them.

In `@src/advisory_engine/core.py`:
- Line 193: Replace all uses of datetime.utcnow() with timezone-aware
datetime.now(timezone.utc) and add the timezone import: change
datetime.utcnow().isoformat() to datetime.now(timezone.utc).isoformat() for each
occurrence (the spots that set timestamp and any other places calling
datetime.utcnow()); also add from datetime import timezone to the module imports
so the code is timezone-aware and avoids the deprecated datetime.utcnow().

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  • config/security_patterns.json
  • src/advisory_engine/core.py

S3DFX-CYBER and others added 3 commits March 6, 2026 22:33
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
@Rudra-rps
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Looks good overall. I don't see any blockers we can address the remaining improvements in future iterations.
LGTM.

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@DonnieBLT would appreciate a review

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LGTM but could you Add unit tests for the new behaviour

@owasp-blt owasp-blt bot added the needs-peer-review PR needs peer review label Mar 12, 2026
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👋 Hi @S3DFX-CYBER!

This pull request needs a peer review before it can be merged. Please request a review from a team member who is not:

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Once a valid peer review is submitted, this check will pass automatically. Thank you!

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@coderabbitai help me Add unit tests for the new behaviour

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coderabbitai bot commented Mar 12, 2026

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For best results, initiate chat on the files or code changes.

🧩 Analysis chain

Let me first inspect the existing test structure and conventions in the repository.


🏁 Script executed:

#!/bin/bash
echo "=== Repo structure (top level) ==="
tree -L 3 2>/dev/null || find . -maxdepth 3 -not -path './.git/*' | sort

echo ""
echo "=== Existing test files ==="
fd -e py . | xargs grep -l "test\|unittest\|pytest" 2>/dev/null | grep -i test || echo "(no test files found)"

echo ""
echo "=== Any pytest/unittest config ==="
fd 'pytest.ini\|setup.cfg\|pyproject.toml\|tox.ini\|conftest.py' --exec cat {}

echo ""
echo "=== requirements / dependencies (for test framework detection) ==="
fd 'requirements*.txt' --exec cat {}

echo ""
echo "=== Current _matches_pattern and evaluate_context in core.py ==="
grep -n "_matches_pattern\|evaluate_context\|generate_report\|_generate_advice_from_pattern\|label_lower\|references\|\"high\"\|severity" src/advisory_engine/core.py | head -80

Length of output: 3394


🏁 Script executed:

#!/bin/bash
echo "=== Existing test_advisory.py ==="
cat -n test_advisory.py

echo ""
echo "=== Full core.py ==="
cat -n src/advisory_engine/core.py

Length of output: 28936


@S3DFX-CYBER Here are the unit tests for all four new behaviours. Add the functions below to test_advisory.py and update main() to call them.


New test functions — append after test_pattern_matching() (before test_pf_check_command)

# ---------------------------------------------------------------------------
# Tests for new behaviours introduced in the security_patterns.json / core.py
# enhancement PR.
# ---------------------------------------------------------------------------

def test_globstar_pattern_matching():
    """Fix 1 — _matches_pattern() must handle ** globstar patterns correctly.

    fnmatch.fnmatch() treats '**' as a literal double-star, so paths like
    'src/auth/login.py' would never match '**/auth/**' before the fix.
    """
    print("\nTesting globstar (**) pattern matching...")

    engine = AdvisoryEngine()

    # --- should MATCH ---
    match_cases = [
        # typical deep-nested paths
        ("src/auth/login.py",             ["**/auth/**"]),
        ("app/backend/auth/session.py",   ["**/auth/**"]),
        ("backend/oauth/provider.py",     ["**/oauth/**"]),
        ("app/jwt/tokens.py",             ["**/jwt/**"]),
        ("services/login/handler.py",     ["**/login/**"]),
        ("core/password/reset.py",        ["**/password/**"]),
        ("lib/ssl/context.py",            ["**/ssl/**"]),
        ("lib/tls/handshake.py",          ["**/tls/**"]),
        # root-level directory (no leading parent dir)
        ("auth/login.py",                 ["**/auth/**"]),
        # Windows-style backslash paths must be normalised
        ("src\\auth\\login.py",           ["**/auth/**"]),
        # trailing /** wildcard
        ("src/migrations/001.sql",        ["src/migrations/**"]),
        # single-level * mixed with **
        ("config/api_key.conf",           ["**/*api*key*"]),
        ("config/secret.env",             ["**/*secret*"]),
    ]
    for file_path, patterns in match_cases:
        result = engine._matches_pattern(file_path, patterns)
        assert result, (
            f"Expected MATCH: '{file_path}' vs {patterns} — "
            f"globstar regex translation may be broken"
        )

    # --- should NOT match ---
    no_match_cases = [
        ("src/utils.py",         ["**/auth/**"]),
        ("src/auth_helper.py",   ["**/auth/**"]),   # 'auth' in filename ≠ 'auth' directory
        ("README.md",            ["**/auth/**"]),
    ]
    for file_path, patterns in no_match_cases:
        result = engine._matches_pattern(file_path, patterns)
        assert not result, (
            f"Expected NO match: '{file_path}' vs {patterns}"
        )

    print("✓ Globstar pattern matching test passed")


def test_bidirectional_label_matching():
    """Fix 2 — evaluate_context() must match labels bidirectionally.

    Before the fix, 'authentication' in 'auth' evaluates to False, so short
    labels like 'auth' or hyphenated labels like 'auth-flow' would never
    trigger the authentication label_pattern.
    """
    print("\nTesting bidirectional label matching...")

    engine = AdvisoryEngine()

    # Helper: collect matched pattern keys from advice titles
    def matched_keys(labels):
        ctx = AdvisoryContext(
            issue_labels=labels,
            repo_metadata={},
            file_patterns=[],
        )
        advice = engine.evaluate_context(ctx)
        return [a.title.lower() for a in advice]

    # Short label "auth" must match the "authentication" pattern key
    titles = matched_keys(["auth"])
    assert any("authentication" in t for t in titles), (
        "Label 'auth' should match 'authentication' pattern (bidirectional)"
    )

    # Hyphenated label "auth-flow" must match after hyphen → underscore normalisation
    titles = matched_keys(["auth-flow"])
    assert any("authentication" in t for t in titles), (
        "Label 'auth-flow' should match 'authentication' pattern"
    )

    # Exact match still works
    titles = matched_keys(["authentication"])
    assert any("authentication" in t for t in titles), (
        "Label 'authentication' should match 'authentication' pattern"
    )

    # Case-insensitive match
    titles = matched_keys(["API"])
    assert any("api" in t for t in titles), (
        "Label 'API' (uppercase) should match 'api' pattern"
    )

    # Unrelated label must NOT match authentication
    titles = matched_keys(["bug"])
    assert not any("authentication" in t for t in titles), (
        "Label 'bug' must not match 'authentication' pattern"
    )

    print("✓ Bidirectional label matching test passed")


def test_references_wiring():
    """Fix 3 — _generate_advice_from_pattern() must prefer the 'references'
    array from the JSON pattern over the hardcoded fallback links.
    """
    print("\nTesting references wiring from pattern data...")

    engine = AdvisoryEngine()

    # Inject a synthetic pattern that carries its own references
    custom_refs = [
        "https://example.com/owasp-custom-ref-1",
        "https://example.com/owasp-custom-ref-2",
    ]
    engine.security_patterns = {
        "file_patterns": {
            "test_pattern": {
                "patterns": ["**/test_secret/**"],
                "severity": "critical",
                "guidance": "Test guidance message",
                "references": custom_refs,
            }
        },
        "label_patterns": {},
    }

    ctx = AdvisoryContext(
        issue_labels=[],
        repo_metadata={},
        file_patterns=["app/test_secret/key.py"],
    )
    advice_list = engine.evaluate_context(ctx)

    assert len(advice_list) == 1, "Should match exactly the injected pattern"
    advice = advice_list[0]

    for ref in custom_refs:
        assert ref in advice.documentation_links, (
            f"Custom reference '{ref}' must appear in documentation_links "
            f"(got: {advice.documentation_links})"
        )

    # The hardcoded fallback URLs must NOT override the JSON references
    hardcoded_fallback = "https://owasp.org/www-project-top-ten/"
    assert hardcoded_fallback not in advice.documentation_links, (
        "Hardcoded fallback URL must not replace JSON 'references' array"
    )

    print("✓ References wiring test passed")


def test_high_severity_in_report():
    """Fix 4 — generate_report() must include a '🟠 High Severity' section
    for advisories with severity='high'.  Before the fix these were silently
    dropped from every generated report.
    """
    print("\nTesting 'high' severity section in report...")

    engine = AdvisoryEngine()

    from datetime import datetime

    high_advice = SecurityAdvice(
        severity="high",
        title="Security Advisory: Database",
        message="Database access requires parameterized queries.",
        documentation_links=["https://cheatsheetseries.owasp.org/cheatsheets/SQL_Injection_Prevention_Cheat_Sheet.html"],
        recommendations=["Use parameterized queries", "Sanitize inputs"],
        timestamp=datetime.utcnow().isoformat(),
    )

    report = engine.generate_report([high_advice])

    assert "High Severity" in report, (
        "'high' severity advice must produce a 'High Severity' section in the report"
    )
    assert "Security Advisory: Database" in report, (
        "The advice title must appear in the report"
    )
    # Must NOT appear under the wrong section
    assert "Critical Security Considerations" not in report, (
        "'high' severity must not bleed into the Critical section"
    )
    assert "Security Warnings" not in report, (
        "'high' severity must not bleed into the Warnings section"
    )

    # Verify all four severity levels are independently handled
    from datetime import datetime

    all_severities = [
        SecurityAdvice("critical", "Advisory: Crit", "msg", [], [], datetime.utcnow().isoformat()),
        SecurityAdvice("high",     "Advisory: High", "msg", [], [], datetime.utcnow().isoformat()),
        SecurityAdvice("warning",  "Advisory: Warn", "msg", [], [], datetime.utcnow().isoformat()),
        SecurityAdvice("info",     "Advisory: Info", "msg", [], [], datetime.utcnow().isoformat()),
    ]
    full_report = engine.generate_report(all_severities)

    for marker in ["Critical Security Considerations", "High Severity", "Security Warnings", "Security Information"]:
        assert marker in full_report, (
            f"Expected section header '{marker}' missing from report"
        )

    print("✓ High severity report section test passed")


def test_high_severity_via_file_pattern():
    """End-to-end: a file_pattern with severity='high' in the JSON must
    produce an advisory that (a) appears in the report and (b) falls in the
    High Severity section — not silently dropped.
    """
    print("\nTesting high severity advisory end-to-end via file pattern...")

    engine = AdvisoryEngine()

    # Inject a pattern identical to the PR's 'database' entry
    engine.security_patterns = {
        "file_patterns": {
            "database": {
                "patterns": ["**/*db*", "**/*database*", "**/migrations/**"],
                "severity": "high",
                "guidance": "Database access must use parameterized queries.",
                "references": ["https://cheatsheetseries.owasp.org/cheatsheets/SQL_Injection_Prevention_Cheat_Sheet.html"],
            }
        },
        "label_patterns": {},
    }

    ctx = AdvisoryContext(
        issue_labels=[],
        repo_metadata={},
        file_patterns=["app/db/connection.py"],
    )
    advice_list = engine.evaluate_context(ctx)

    assert len(advice_list) == 1
    assert advice_list[0].severity == "high"

    report = engine.generate_report(advice_list)
    assert "High Severity" in report, (
        "End-to-end: 'high' severity from file pattern must appear in report"
    )

    print("✓ End-to-end high severity test passed")

Updated main() — add the five new calls

def main():
    """Run all tests."""
    print("=" * 60)
    print("BLT Preflight Advisory Engine - Test Suite")
    print("=" * 60)

    try:
        test_advisory_generation()
        test_report_generation()
        test_feedback_recording()
        test_intent_capture()
        test_dashboard()
        test_pattern_matching()
        # --- new behaviour tests ---
        test_globstar_pattern_matching()
        test_bidirectional_label_matching()
        test_references_wiring()
        test_high_severity_in_report()
        test_high_severity_via_file_pattern()
        # --------------------------
        test_pf_check_command()

        print("\n" + "=" * 60)
        print("✅ All tests passed!")
        print("=" * 60)
        return 0

    except AssertionError as e:
        print(f"\n❌ Test failed: {e}")
        return 1
    except Exception as e:
        print(f"\n❌ Unexpected error: {e}")
        import traceback
        traceback.print_exc()
        return 1

What each test covers

Test function Fix What it verifies
test_globstar_pattern_matching Fix 1 _matches_pattern() correctly resolves ** for deep paths, root paths, Windows paths, and non-matching paths
test_bidirectional_label_matching Fix 2 auth, auth-flow, API all match; bug does not
test_references_wiring Fix 3 Custom JSON references are used; hardcoded fallback URL is absent
test_high_severity_in_report Fix 4 🟠 section present; all four severity sections co-exist correctly
test_high_severity_via_file_pattern Fix 4 (E2E) severity="high" on a file pattern flows through evaluate_contextgenerate_report without being dropped

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Add security patterns based on common vulnerability types

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