OESA-2026-1788 python-markdown security update

This is a Python implementation of John Gruber’s Markdown. It is almost completely compliant with the reference implementation, though there are a few known issues. Security Fixes: Python-Markdown version 3.8 contain a vulnerability where malformed HTML-like sequences can cause...

Amazon Linux 2023 : python3-markdown (ALAS2023-2026-1492)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1492 advisory. 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-...

Important: python-markdown

Issue Overview: 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...

The vulnerability of the Python Markdown library’s extensions, specifically pymdown-extensions, arises from the use of a regular expression “c” with inefficient computational complexity. This allows attackers to trigger a denial-of-service attack.

The vulnerability of the pymdown-extensions extension for the Python Markdown library is related to the use of a regular expression with inefficient computational complexity. Exploiting this vulnerability could allow an attacker to cause service interruptions remotely...

openSUSE 15 Security Update : python-Markdown (SUSE-SU-2026:0846-1)

The remote openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:0846-1 advisory. This update for python-Markdown fixes the following issue: - CVE-2025-69534: incomplete markup declaration in raw HTML can crash applications that process...

openSUSE Security Advisory (SUSE-SU-2026:0846-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Denial Of Service (DoS)

Python-Markdown is vulnerable to Denial of Service DoS. The vulnerability is due to improper handling of malformed HTML-like sequences during Markdown parsing, where html.parser.HTMLParser may raise an unhandled AssertionError, allowing attacker-supplied Markdown input to crash the application...

SUSE-SU-2026:0846-1 Security update for python-Markdown

This update for python-Markdown fixes the following issue: - CVE-2025-69534: incomplete markup declaration in raw HTML can crash applications that process untrusted Markdown bsc1259256...

SUSE CVE-2025-69534

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...

Linux Distros Unpatched Vulnerability : CVE-2025-69534

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Python-Markdown version 3.8 contain a vulnerability where malformed HTML-like sequences can cause html.parser.HTMLParser to raise an unhandled AssertionError...

CVE-2025-69534

A flaw was found in Python-Markdown. Parsing crafted markdown content containing malformed HTML-like sequences causes html.parser.HTMLParser to raise an unhandled AssertionError. This unhandled exception allows an attacker to cause an application crash and potentially disclose sensitive informati...

Python-Markdown has an Uncaught Exception

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...

EUVD-2025-208312

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...

CVE-2025-69534

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...

PYSEC-2026-89

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...

PYSEC-2026-89

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...

DEBIAN-CVE-2025-69534

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...

UBUNTU-CVE-2025-69534

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...

CVE-2025-69534

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...

CVE-2025-69534

The CVE-2025-69534 affects Python-Markdown 3.8, where malformed HTML-like sequences trigger an unhandled AssertionError in html.parser.HTMLParser during Markdown parsing. This can produce a remote, unauthenticated Denial of Service for applications rendering untrusted Markdown, with potential inf...