CVE-2026-0992

LOW

2.9

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.

CVE Details

CVSS v3.1 Score2.9

SeverityLOW

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

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published1/15/2026

Last Modified1/16/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-400

References

https://access.redhat.com/security/cve/CVE-2026-0992(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2429975(secalert@redhat.com)

IOC Correlations

No correlations recorded

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