CVE-2026-0992

LowCVSS 2.9/10Last modified Sep 1, 2026

Description

A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.

Metrics

CVSS 3.1 2.9/10CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published: Jan 15, 2026
Last modified: Sep 1, 2026
NVD status: Analyzed

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