CVE-2025-6069

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CVSS 3.1

4.3 medium

EPSS

<1%p44

Published

Jun 17, 2025 (Jun 17, 2025)

Modified

Jul 31, 2026

Description

The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.

Weakness: CWE-1333
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

NVD CVE.org GitHub PoCs EPSS (0.5%)

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