{"cve":"CVE-2026-0992","nvd":{"published":"2026-01-15T15:15:52.657","modified":"2026-09-01T13:18:07.380","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","score":2.9},"cwes":["CWE-400"],"references":["https://access.redhat.com/errata/RHSA-2026:7519","https://access.redhat.com/security/cve/CVE-2026-0992","https://bugzilla.redhat.com/show_bug.cgi?id=2429975","https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019"],"products":["ibm:aix","ibm:vios","redhat:enterprise_linux","redhat:hardened_images","redhat:jboss_core_services","redhat:openshift_container_platform","xmlsoft:libxml2"],"source":"nvd","synced_at":"2026-10-19T22:19:41.481987139+00:00"},"epss":{"cve":"CVE-2026-0992","score":0.00459,"percentile":0.39773,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}