CVE-2025-69534 - Python-Markdown HTML Injection Denial of Service

CVE ID : CVE-2025-69534 Published : March 5, 2026, 3:16 p.m. | 17 minutes ago Description : 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. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...