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CVE-2025-69534

Опубликовано: 05 мар. 2026
Источник: nvd
CVSS3: 7.5
CVSS3: 8.2
EPSS Низкий

Описание

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.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:python-markdown:markdown:3.8:*:*:*:*:python:*:*

EPSS

Процентиль: 44%
0.00566
Низкий

7.5 High

CVSS3

8.2 High

CVSS3

Дефекты

CWE-400
CWE-617

Связанные уязвимости

CVSS3: 7.5
ubuntu
5 месяцев назад

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.

CVSS3: 8.2
redhat
5 месяцев назад

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.

CVSS3: 7.5
debian
5 месяцев назад

Python-Markdown version 3.8 contain a vulnerability where malformed HT ...

suse-cvrf
5 месяцев назад

Security update for python-Markdown

rocky
2 месяца назад

Important: python-markdown security update

EPSS

Процентиль: 44%
0.00566
Низкий

7.5 High

CVSS3

8.2 High

CVSS3

Дефекты

CWE-400
CWE-617