CVEvulnerability
CVE-2025-6069
4.3 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2025-06-17
- Last modified
- 2026-07-31
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-1333
Description
The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.
Related
Weakness · CWE (1)
- CWE-1333 Inefficient Regular Expression Complexity weakness
References
- https://github.com/python/cpython/commit/4455cbabf991e202185a25a631af206f60bbc949 github.com
- https://github.com/python/cpython/commit/6eb6c5dbfb528bd07d77b60fd71fd05d81d45c41 github.com
- https://github.com/python/cpython/commit/8d1b3dfa09135affbbf27fb8babcf3c11415df49 github.com
- https://github.com/python/cpython/commit/ab0893fd5c579d9cea30841680e6d35fc478afb5 github.com
- https://github.com/python/cpython/commit/d851f8e258c7328814943e923a7df81bca15df4b github.com
- https://github.com/python/cpython/commit/f3c6f882cddc8dc30320d2e73edf019e201394fc github.com
- https://github.com/python/cpython/commit/fdc9d214c01cb4588f540cfa03726bbf2a33fc15 github.com
- https://github.com/python/cpython/issues/135462 github.com
- https://github.com/python/cpython/pull/135464 github.com
- https://mail.python.org/archives/list/[email protected]/thread/K5PIYLR6EP3WR7ZOKKYQUWEDNQVUXOYM/ mail.python.org