CVEvulnerability
CVE-2026-0992
2.9 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-01-15
- Last modified
- 2026-09-01
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 2.9 LOW — CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-400
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.
Affected configurations
• redhat hardened images
• redhat jboss core services
• redhat openshift container platform 4.0
• redhat enterprise linux 6.0
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
• ibm vios (>= 4.1.0 < 4.1.1.30)
• ibm vios 4.1.2.0
• ibm aix (>= 7.2.5 < 7.2.5.12)
• ibm aix (>= 7.3.2 < 7.3.3.3)
• ibm aix 7.3.4
• xmlsoft libxml2 (< 2.15.2)
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- https://access.redhat.com/errata/RHSA-2026:7519 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-0992 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2429975 Issue Tracking, Third Party Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019 Exploit, Third Party Advisory