{"id":"BIT-python-min-2026-7210","summary":"The expat and elementtree parsers use insufficient entropy for XML hash-flooding protection","details":"`xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding protection, which allows a crafted XML document to trigger hash flooding.\\r\\n\\r\\nFully mitigating this vulnerability requires both updating libexpat to 2.8.0 or later and applying this patch.","aliases":["BIT-libpython-2026-7210","BIT-python-2026-7210","CVE-2026-7210","PSF-2026-23"],"modified":"2026-05-15T12:56:22.795905391Z","published":"2026-05-15T12:01:47.056Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"]},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/11/13"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/11/8"},{"type":"WEB","url":"https://github.com/python/cpython/issues/149018"},{"type":"WEB","url":"https://github.com/python/cpython/pull/149023"},{"type":"WEB","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/PNY5OMBDPM2FRUZTWFFPJ6LISWKV627K/"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7210"}],"affected":[{"package":{"name":"python-min","ecosystem":"Bitnami","purl":"pkg:bitnami/python-min"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/python-min/BIT-python-min-2026-7210.json"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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"}