🛡️ Sentinel: Add standard security headers #50
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- Add X-Frame-Options: DENY - Add X-Content-Type-Options: nosniff - Add Content-Security-Policy: default-src 'self' - Add Strict-Transport-Security (HSTS) for non-localhost connections This enhancement protects against clickjacking, MIME sniffing, and downgrade attacks.
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🛡️ Sentinel: [HIGH] Add standard security headers
🚨 Severity: HIGH
💡 Vulnerability: Missing HTTP security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options) left the application vulnerable to common web attacks like clickjacking and MIME sniffing.
🎯 Impact: Attackers could potentially frame the application (if it had a UI), sniff content types to execute malicious scripts, or downgrade HTTPS connections.
🔧 Fix: Implemented a middleware in
src/http-transport.tsthat sets these headers on every response. HSTS is conditionally applied only to non-localhost connections to support local development.✅ Verification: Verified manually with
src/security-headers.test.ts(created during development) and by running the full test suite to ensure no regressions. Usecurl -I <url>to verify headers in production.PR created automatically by Jules for task 2736432306536903865 started by @davidruzicka