Description
In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
libexpat project libexpat
Default version status: unaffected
0 to < 2.8.1affected
References
- https://github.com/libexpat/libexpat/pull/1216 ↗
- http://www.openwall.com/lists/oss-security/2026/05/11/16 ↗
- https://access.redhat.com/security/cve/CVE-2026-45186 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2468575 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45186.json ↗
- https://access.redhat.com/errata/RHSA-2026:22715 ↗
- https://access.redhat.com/errata/RHSA-2026:23230 ↗
- https://access.redhat.com/errata/RHSA-2026:22721 ↗
- https://access.redhat.com/errata/RHSA-2026:29197 ↗
- https://access.redhat.com/errata/RHSA-2026:27201 ↗
- https://access.redhat.com/errata/RHSA-2026:58981 ↗
- https://access.redhat.com/errata/RHSA-2026:26319 ↗
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html ↗