HTMLParser quadratic complexity when processing malformed inputs
The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-6069US | — | — | ||
The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service. | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/python/cpython/commit/4455cbabf991e202185a25a631af206f60bbc949WEB
- https://github.com/python/cpython/commit/6eb6c5dbfb528bd07d77b60fd71fd05d81d45c41WEB
- https://github.com/python/cpython/commit/8d1b3dfa09135affbbf27fb8babcf3c11415df49WEB
- https://github.com/python/cpython/commit/ab0893fd5c579d9cea30841680e6d35fc478afb5WEB
- https://github.com/python/cpython/commit/d851f8e258c7328814943e923a7df81bca15df4bWEB
- https://github.com/python/cpython/commit/f3c6f882cddc8dc30320d2e73edf019e201394fcWEB
- https://github.com/python/cpython/commit/fdc9d214c01cb4588f540cfa03726bbf2a33fc15WEB
- https://github.com/python/cpython/issues/135462WEB
scry
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