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VULNERABILITIES

CVE-2026-76781 Details

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).

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:57604 [email protected]
https://access.redhat.com/security/cve/CVE-2026-76781 [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2519776 [email protected]
https://gitlab.gnome.org/GNOME/libxml2/-/commit/c6324894 [email protected]
https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/442 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-476NULL Pointer Dereference[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-76781
NVD Published Date:
Sep 17, 2026
NVD Last Modified:
Sep 24, 2026
Source:
[email protected]
CVE-2026-76781 Details - Not Deferred