Description
The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Python Software Foundation CPython
Default version status: unaffected
0 to < 3.9.24affected3.10.0 to < 3.10.19affected3.11.0 to < 3.11.14affected3.12.0 to < 3.12.12affected3.13.0 to < 3.13.6affected3.14.0a1 to < 3.14.0b3affected
References
- https://github.com/python/cpython/issues/135462 ↗
- https://github.com/python/cpython/pull/135464 ↗
- https://github.com/python/cpython/commit/4455cbabf991e202185a25a631af206f60bbc949 ↗
- https://github.com/python/cpython/commit/6eb6c5dbfb528bd07d77b60fd71fd05d81d45c41 ↗
- https://github.com/python/cpython/commit/d851f8e258c7328814943e923a7df81bca15df4b ↗
- https://mail.python.org/archives/list/security-announce@python.org/thread/K5PIYLR6EP3WR7ZOKKYQUWEDNQVUXOYM/ ↗
- https://github.com/python/cpython/commit/8d1b3dfa09135affbbf27fb8babcf3c11415df49 ↗
- https://github.com/python/cpython/commit/ab0893fd5c579d9cea30841680e6d35fc478afb5 ↗
- https://github.com/python/cpython/commit/f3c6f882cddc8dc30320d2e73edf019e201394fc ↗
- https://github.com/python/cpython/commit/fdc9d214c01cb4588f540cfa03726bbf2a33fc15 ↗