{"cve":"CVE-2026-76781","nvd":{"published":"2026-09-17T16:17:42.070","modified":"2026-10-30T07:16:34.207","status":"Awaiting Analysis","description":"A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a `nextCatalog` element lacks its mandatory `catalog` attribute, leading to the application crashing and causing a Denial of Service (DoS).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://access.redhat.com/errata/RHSA-2026:57604","https://access.redhat.com/security/cve/CVE-2026-76781","https://bugzilla.redhat.com/show_bug.cgi?id=2519776","https://gitlab.gnome.org/GNOME/libxml2/-/commit/c6324894","https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/442"],"products":[],"source":"nvd","synced_at":"2026-10-30T07:40:07.031162691+00:00"},"epss":{"cve":"CVE-2026-76781","score":0.00167,"percentile":0.05922,"date":"2026-10-29"},"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."]}