4.9Media
CVE-2026-76957
Descripción
libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. NOTE: this is similar to CVE-2026-50219, CVE-2026-56131 and CVE-2026-56412.
Debilidad (CWE):
CWE-416
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
Referencias y parches
- https://github.com/libexpat/libexpat/pull/1322 Issue TrackingPatchVendor Advisory
- https://github.com/libexpat/libexpat/pull/1329 Issue TrackingPatch
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
Coincidencias CPE (NVD) (1)
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*< 2.8.4