CVE-2026-0990

תיאור (מקור, אנגלית)

A flaw was found in libxml2, an XML parsing library. This uncontrolled recursion vulnerability occurs in the xmlCatalogXMLResolveURI function when an XML catalog contains a delegate URI entry that references itself. A remote attacker could exploit this configuration-dependent issue by providing a specially crafted XML catalog, leading to infinite recursion and call stack exhaustion. This ultimately results in a segmentation fault, causing a Denial of Service (DoS) by crashing affected applications.

מדדים

CVSS 3.1

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

EPSS — סבירות ניצול

1% (אחוזון 100) נכון ל-23/9/2026

CWE

CWE-674

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/1018 ExploitIssue TrackingThird Party Advisory
• https://access.redhat.com/errata/RHSA-2026:7519 Third Party Advisory
• https://access.redhat.com/security/cve/CVE-2026-0990 Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2429959 Issue TrackingThird Party Advisory