CVE-2026-0990
mediumA flaw was found in libxml2, an XML parsing library.
Vendor / product: Redhat — hardened images
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/errata/RHSA-2026:7519 secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2026-0990 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2429959 secalert@redhat.com
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/1018 secalert@redhat.com