> USN-7974-1: libxml2 vulnerabilities

It was discovered that libxml2 incorrectly handled maliciously crafted SGML catalog files. An attacker could possibly use this issue to cause libxml2 to consume excessive resources, leading to a denial of service. (CVE-2025-8732) It was discovered that libxml2 incorrectly handled recursive include directories with the RelaxNG parser. An attacker could possibly use this issue to cause libxml2 to consume excessive resources, leading to a denial of service. (CVE-2026-0989) Nick Wellnhofer discovered that libxml2 incorrectly parsed catalogs with self-referencing URI delegates. An attacker could possibly use this issue to cause libxml2 to consume excessive resources, leading to a denial of service. (CVE-2026-0990) Nick Wellnhofer discovered that libxml2 inefficiently parsed catalogs linked with repeating nextCatalog elements. An attacker could possibly use this issue to cause libxml2 to use excessive resources, leading to a denial of service. (CVE-2026-0992)