Markdown-3.4.4-py3-none-any.whl: 1 vulnerabilities (highest severity is: 5.3)

[mend-bolt-for-github]

Vulnerable Library - Markdown-3.4.4-py3-none-any.whl

Python implementation of John Gruber's Markdown.

Library home page: https://files.pythonhosted.org/packages/1a/b5/228c1cdcfe138f1a8e01ab1b54284c8b83735476cb22b6ba251656ed13ad/Markdown-3.4.4-py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /requirements.txt

Found in HEAD commit: 46b2b180777accd8b00c59f7f7b3dae4eeecfed2

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (Markdown version)	Remediation Possible**
CVE-2025-69534	Medium	5.3	Markdown-3.4.4-py3-none-any.whl	Direct	markdown - 3.8.1	❌

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2025-69534

Vulnerable Library - Markdown-3.4.4-py3-none-any.whl

Python implementation of John Gruber's Markdown.

Library home page: https://files.pythonhosted.org/packages/1a/b5/228c1cdcfe138f1a8e01ab1b54284c8b83735476cb22b6ba251656ed13ad/Markdown-3.4.4-py3-none-any.whl

Path to dependency file: /requirements.txt

Path to vulnerable library: /requirements.txt

Dependency Hierarchy:

• ❌ Markdown-3.4.4-py3-none-any.whl (Vulnerable Library)

Found in HEAD commit: 46b2b180777accd8b00c59f7f7b3dae4eeecfed2

Found in base branch: main

Vulnerability Details

Python-Markdown version 3.8 contain a vulnerability where malformed HTML-like sequences can cause html.parser.HTMLParser to raise an unhandled AssertionError during Markdown parsing. Because Python-Markdown does not catch this exception, any application that processes attacker-controlled Markdown may crash. This enables remote, unauthenticated Denial of Service in web applications, documentation systems, CI/CD pipelines, and any service that renders untrusted Markdown. The issue was acknowledged by the vendor and fixed in version 3.8.1. This issue causes a remote Denial of Service in any application parsing untrusted Markdown, and can lead to Information Disclosure through uncaught exceptions.

Publish Date: 2026-03-05

URL: CVE-2025-69534

CVSS 3 Score Details (5.3)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-5wmx-573v-2qwq

Release Date: 2026-03-05

Fix Resolution: markdown - 3.8.1

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