{"id":"CVE-2026-0992","title":"A flaw was found in the libxml2 library","summary":"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…","severity":"low","cvss":2.9,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-400"],"published":"2026-01-15","updated":"2026-06-29","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-0992","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:7519","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-0992","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2429975","label":"secalert@redhat.com"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00465,"epssPercentile":0.39393,"ingestedAt":"2026-06-29T21:48:47.226Z","slug":"CVE-2026-0992","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":16,"depthScoreParts":{"impact":16,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}