USN-8023-1: xmltok library vulnerabilities

It was discovered that Expat, contained within the xmltok library, incorrectly
handled the initialization of parsers for external entities. An attacker could
possibly use this issue to cause a denial of service. (CVE-2026-24515)

It was discovered that Expat, contained within the xmltok library, incorrectly
handled integer calculations when allocating memory for XML tags. An attacker
could possibly use this issue to cause a denial of service or execute arbitrary
code. (CVE-2026-25210)