GHSA-wxv8-w48j-r2f4MediumCVSS 9.8
`xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding...
🔗 CVE IDs covered (1)
📋 Description
`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.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-7210
- https://github.com/python/cpython/issues/149018
- https://github.com/python/cpython/pull/149023
- https://mail.python.org/archives/list/security-announce@python.org/thread/PNY5OMBDPM2FRUZTWFFPJ6LISWKV627K
- http://www.openwall.com/lists/oss-security/2026/05/11/8
- http://www.openwall.com/lists/oss-security/2026/05/11/13
- https://github.com/advisories/GHSA-wxv8-w48j-r2f4