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CVE-2026-0992Libxml2: libxml2: denial of service via crafted xml catalogs

Red Hat Red Hat Hardened Images; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 6; Red Hat Red Hat Enterprise Linux 7 Publicada: (hace 9 meses)

Descripción

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.

Debilidad (CWE): CWE-400

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

FabricanteProductoVersiones
ibm aix 7.2.5 – < 7.2.5.12
ibm vios 4.1.0 – < 4.1.1.30
redhat enterprise linux 6.0
redhat hardened images —
redhat jboss core services —
redhat openshift container platform 4.0
Red Hat Red Hat Enterprise Linux 10 all versions
Red Hat Red Hat Enterprise Linux 6 all versions
Red Hat Red Hat Enterprise Linux 7 all versions
Red Hat Red Hat Enterprise Linux 8 all versions
Red Hat Red Hat Enterprise Linux 9 all versions
Red Hat Red Hat Hardened Images all versions
Red Hat Red Hat JBoss Core Services all versions
Red Hat Red Hat OpenShift AI (RHOAI) —
Red Hat Red Hat OpenShift Container Platform 4 all versions
xmlsoft libxml2 < 2.15.2

Referencias y parches

Coincidencias CPE (NVD) (14)
  • cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:jboss_core_services:-:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* ≥ 4.1.0 < 4.1.1.30
  • cpe:2.3:a:ibm:vios:4.1.2.0:*:*:*:*:*:*:*
  • cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* ≥ 7.2.5 < 7.2.5.12
  • cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* ≥ 7.3.2 < 7.3.3.3
  • cpe:2.3:o:ibm:aix:7.3.4:*:*:*:*:*:*:*
  • cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* < 2.15.2

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