CVEvulnerability
CVE-2026-76781
5.5 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-17
- Last modified
- 2026-09-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a `nextCatalog` element lacks its mandatory `catalog` attribute, leading to the application crashing and causing a Denial of Service (DoS).
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://access.redhat.com/errata/RHSA-2026:57604 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-76781 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2519776 bugzilla.redhat.com
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/c6324894 gitlab.gnome.org
- https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/442 gitlab.gnome.org