#VU122089 Resource exhaustion in Libxml2 - CVE-2026-0992
Published: January 27, 2026
Vulnerability identifier: #VU122089
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-0992
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Libxml2
Libxml2
Software vendor:
Gnome Development Team
Gnome Development Team
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.