Source: libxml2.9 Version: 2.15.1+dfsg-2 Severity: important Tags: security upstream Forwarded: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for libxml2. CVE-2026-0992[0]: | 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. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-0992 https://www.cve.org/CVERecord?id=CVE-2026-0992 [1] https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
