CVE-2026-0992

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

2.9 (LOW) מקור הציון: CNA CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-23/9/2026

CWE

CWE-400

מוצרים מושפעים

redhat: hardened images; redhat: jboss core services; redhat: openshift container platform; redhat: enterprise linux; ibm: vios; ibm: aix; xmlsoft: libxml2

קישורים

• https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019 ExploitThird Party Advisory
• 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 TrackingThird Party Advisory