CVE-2026-0992
Low
Low
Medium
High
Critical
2.9
CVSS Score
Published: Jan 15, 2026
Last Modified: Jan 15, 2026
Vulnerability 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 Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
L
Attack Complexity
H
Privileges Required
N
User Interaction
N
Scope
U
Confidentiality
N
Integrity
N
Availability
L
Severity Details
2.9
out of 10.0
Low
Key Information
- Published Date
- January 15, 2026
