CVE-2026-76781

5.5 MEDIUM

Published 2026-09-17 · Updated 2026-09-21

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD 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).

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses

CWE-476

All references

https://access.redhat.com/errata/RHSA-2026:57604
https://access.redhat.com/security/cve/CVE-2026-76781
https://bugzilla.redhat.com/show_bug.cgi?id=2519776
https://gitlab.gnome.org/GNOME/libxml2/-/commit/c6324894
https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/442

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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