{"id":"CVE-2025-6069","details":"The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.","aliases":["BIT-libpython-2025-6069","BIT-python-2025-6069","BIT-python-min-2025-6069","PSF-2025-10"],"modified":"2026-04-10T05:32:27.160085Z","published":"2025-06-17T14:15:33.677Z","related":["ALSA-2025:23342","ALSA-2025:23530","CGA-pf6p-6fjc-h933","SUSE-SU-2025:02232-1","SUSE-SU-2025:02297-1","SUSE-SU-2025:02358-1","SUSE-SU-2025:02359-1","SUSE-SU-2025:02427-1","SUSE-SU-2025:02460-1","SUSE-SU-2025:02523-1","SUSE-SU-2025:02597-1","SUSE-SU-2025:02717-1","SUSE-SU-2025:02767-1","SUSE-SU-2025:02778-1","SUSE-SU-2025:02802-1","SUSE-SU-2025:20492-1","SUSE-SU-2025:20539-1","SUSE-SU-2025:3706-1","SUSE-SU-2026:20125-1","SUSE-SU-2026:20154-1","openSUSE-SU-2025:15285-1","openSUSE-SU-2025:15289-1","openSUSE-SU-2025:15290-1","openSUSE-SU-2025:15365-1","openSUSE-SU-2025:15366-1","openSUSE-SU-2025:15367-1","openSUSE-SU-2025:15713-1","openSUSE-SU-2026:20081-1"],"references":[{"type":"WEB","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/K5PIYLR6EP3WR7ZOKKYQUWEDNQVUXOYM/"},{"type":"REPORT","url":"https://github.com/python/cpython/issues/135462"},{"type":"FIX","url":"https://github.com/python/cpython/commit/d851f8e258c7328814943e923a7df81bca15df4b"},{"type":"FIX","url":"https://github.com/python/cpython/commit/f3c6f882cddc8dc30320d2e73edf019e201394fc"},{"type":"FIX","url":"https://github.com/python/cpython/pull/135464"},{"type":"FIX","url":"https://github.com/python/cpython/commit/4455cbabf991e202185a25a631af206f60bbc949"},{"type":"FIX","url":"https://github.com/python/cpython/commit/6eb6c5dbfb528bd07d77b60fd71fd05d81d45c41"},{"type":"FIX","url":"https://github.com/python/cpython/commit/8d1b3dfa09135affbbf27fb8babcf3c11415df49"},{"type":"FIX","url":"https://github.com/python/cpython/commit/ab0893fd5c579d9cea30841680e6d35fc478afb5"},{"type":"FIX","url":"https://github.com/python/cpython/commit/fdc9d214c01cb4588f540cfa03726bbf2a33fc15"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"4455cbabf991e202185a25a631af206f60bbc949"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"6eb6c5dbfb528bd07d77b60fd71fd05d81d45c41"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"8d1b3dfa09135affbbf27fb8babcf3c11415df49"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"ab0893fd5c579d9cea30841680e6d35fc478afb5"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"d851f8e258c7328814943e923a7df81bca15df4b"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"f3c6f882cddc8dc30320d2e73edf019e201394fc"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"fdc9d214c01cb4588f540cfa03726bbf2a33fc15"}]}],"versions":["v0.9.8","v0.9.9","v1.0.1","v1.0.2","v1.1","v1.1.1","v1.2","v1.2b1","v1.2b2","v1.2b3","v1.2b4","v1.3","v1.3b1","v1.4","v1.4b1","v1.4b2","v1.4b3","v1.5","v1.5.1","v1.5.2","v1.5.2a1","v1.5.2a2","v1.5.2b1","v1.5.2b2","v1.5.2c1","v1.5a1","v1.5a2","v1.5a3","v1.5a4","v1.5b1","v1.5b2","v1.6a1","v1.6a2","v2.0","v2.0b1","v2.0b2","v2.0c1","v2.1","v2.1a1","v2.1a2","v2.1b1","v2.1b2","v2.1c1","v2.1c2","v2.2a3","v2.3c1","v2.3c2","v2.4","v2.4a1","v2.4a2","v2.4a3","v2.4b1","v2.4b2","v2.4c1","v3.0a1","v3.0a2","v3.0a3","v3.0a4","v3.0a5","v3.0b1","v3.0b2","v3.0b3","v3.0rc1","v3.0rc2","v3.0rc3","v3.1","v3.10.0a1","v3.10.0a7","v3.10.0b1","v3.10.0b2","v3.10.0b3","v3.10.0b4","v3.10.0rc1","v3.10.0rc2","v3.10.1","v3.10.10","v3.10.11","v3.10.12","v3.10.13","v3.10.14","v3.10.15","v3.10.16","v3.10.17","v3.10.18","v3.10.2","v3.10.3","v3.10.4","v3.10.5","v3.10.6","v3.10.7","v3.10.8","v3.10.9","v3.11.0a3","v3.11.0a4","v3.11.0a5","v3.11.0a6","v3.11.0a7","v3.11.0b1","v3.11.0b2","v3.11.0b3","v3.11.0b4","v3.11.0b5","v3.11.0rc1","v3.11.0rc2","v3.11.1","v3.11.10","v3.11.11","v3.11.12","v3.11.13","v3.11.2","v3.11.3","v3.11.4","v3.11.5","v3.11.6","v3.11.7","v3.11.8","v3.11.9","v3.12.0","v3.12.0a1","v3.12.0a2","v3.12.0a3","v3.12.0a4","v3.12.0a5","v3.12.0a6","v3.12.0a7","v3.12.0b1","v3.12.0b2","v3.12.0b3","v3.12.0b4","v3.12.0rc1","v3.12.0rc2","v3.12.0rc3","v3.12.1","v3.12.10","v3.12.11","v3.12.2","v3.12.3","v3.12.4","v3.12.5","v3.12.6","v3.12.7","v3.12.8","v3.12.9","v3.13.0","v3.13.0a1","v3.13.0a2","v3.13.0a3","v3.13.0a4","v3.13.0a5","v3.13.0a6","v3.13.0b1","v3.13.0b2","v3.13.0b3","v3.13.0b4","v3.13.0rc1","v3.13.0rc2","v3.13.0rc3","v3.13.1","v3.13.2","v3.13.3","v3.13.4","v3.13.5","v3.14.0a1","v3.14.0a2","v3.14.0a3","v3.14.0a4","v3.14.0a5","v3.14.0a6","v3.14.0a7","v3.14.0b1","v3.14.0b2","v3.1a1","v3.1a2","v3.1b1","v3.1rc1","v3.1rc2","v3.2a1","v3.2a2","v3.2a3","v3.2a4","v3.2b1","v3.2b2","v3.2rc1","v3.2rc2","v3.2rc3","v3.3.0a2","v3.3.0a3","v3.3.0a4","v3.3.0b1","v3.3.0b2","v3.3.0rc1","v3.3.0rc2","v3.3.0rc3","v3.4.0a1","v3.4.0a2","v3.4.0a3","v3.4.0a4","v3.4.0b1","v3.4.0b2","v3.4.0b3","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