5.9

CVE-2026-0990

Exploit

Libxml2: libxml2: denial of service via uncontrolled recursion in xml catalog processing

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Hardened Images Version-
Redhat ≫ Enterprise Linux Version6.0
Redhat ≫ Enterprise Linux Version7.0
Redhat ≫ Enterprise Linux Version8.0
Redhat ≫ Enterprise Linux Version9.0
Redhat ≫ Enterprise Linux Version10.0
Ibm ≫ Vios Version >= 4.1.0 < 4.1.1.30
Ibm ≫ Vios Version4.1.2.0
Ibm ≫ Aix Version >= 7.2.5 < 7.2.5.12
Ibm ≫ Aix Version >= 7.3.2 < 7.3.3.3
Ibm ≫ Aix Version7.3.4
Xmlsoft ≫ Libxml2 Version < 2.15.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.76% 0.506
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 5.9 2.2 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-674 Uncontrolled Recursion

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

https://access.redhat.com/security/cve/CVE-2026-0990
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2429959
Third Party Advisory
Issue Tracking
https://gitlab.gnome.org/GNOME/libxml2/-/issues/1018
Third Party Advisory
Exploit
Issue Tracking
https://access.redhat.com/errata/RHSA-2026:7519
Third Party Advisory