CVE-2026-76781
Medium · 5.5CVSS
5.5
EPSS
0.2%
Published
Sep 17, 2026
CISA due date
—
The record
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).
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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