CVE-2026-41080
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 2.9epss 0.4%
exploitation probability
0.4%top 67% of all CVEs
observed exploitation
nono source reports it
libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
libexpat project · libexpatReferences
https://blog.hartwork.org/posts/expat-2-8-0-released/https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://github.com/libexpat/libexpat/issues/47https://github.com/libexpat/libexpat/pull/1183https://www.openwall.com/lists/oss-security/2026/04/26/1http://www.openwall.com/lists/oss-security/2026/04/26/1