CVE-2026-0992

LOW EPSS 21.9%

Published Jan 15, 20265mo ago · Modified Jun 17, 20261w ago

2.9 CVSS 3.1

Low

Published Jan 15, 2026 5mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

2.9

Exploitability

1.4

Impact

1.4

Vector string

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

Attack Vector Local

Attack Complexity High

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability Low

Threat Intelligence

EPSS Exploit Probability

21.9% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-400 Uncontrolled Resource Consumption Resource Mgmt

References 4

access.redhat.com https://access.redhat.com/errata/RHSA-2026:7519
access.redhat.com https://access.redhat.com/security/cve/CVE-2026-0992
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2429975
gitlab.gnome.org https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.