VULNERABILITY INTELLIGENCE
CVE-2025-6069
CVSS score4.3 MEDIUM
EPSS probability0.60%
CISA KEVNot currently listed
Published2025-06-17
Last modified2026-07-31
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
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 classification
- cna@python.org: CWE-1333