{"id":"BIT-python-2026-15308","summary":"Incremental HTMLParser feed() allows CPU-exhaustion DoS via repeated unterminated markup declarations","details":"The incremental HTML parser (html.parser.HTMLParser) allows for CPU\ndenial-of-service through repeated unterminated markup declarations when\nprocessing uncontrolled data.","aliases":["BIT-libpython-2026-15308","BIT-python-min-2026-15308","CVE-2026-15308","PSF-2026-33"],"modified":"2026-07-13T06:41:34.176950313Z","published":"2026-07-12T23:53:05.763Z","database_specific":{"cpes":["cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/07/09/4"},{"type":"WEB","url":"https://github.com/python/cpython/commit/07efb08123ba9367a7107325adb9d5626dca1ca9"},{"type":"WEB","url":"https://github.com/python/cpython/commit/7933f4bf7131aa4140750f9404f5de0aa2969ced"},{"type":"WEB","url":"https://github.com/python/cpython/commit/bcf98ddbc40ec9b3ee87da0124a5660b19b7e606"},{"type":"WEB","url":"https://github.com/python/cpython/commit/e9f92ac0b298292e7ff998e52cb8ccacfb27a0bd"},{"type":"WEB","url":"https://github.com/python/cpython/issues/153030"},{"type":"WEB","url":"https://github.com/python/cpython/pull/153031"},{"type":"WEB","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/F6453LWKSHKCTWFLCOURWPLETNUIW2Z5/"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15308"}],"affected":[{"package":{"name":"python","ecosystem":"Bitnami","purl":"pkg:bitnami/python"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.15.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/python/BIT-python-2026-15308.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.7.5"}