It was discovered that Expat incorrectly handled memory when parsing certain XML files. An attacker could use this issue to cause a denial of service. This issue was only addressed in Ubuntu 25.10. ( CVE-2025-59375 ) It was discovered that Expat 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 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 )
It was discovered that Expat incorrectly handled memory when parsing certain XML files. An attacker could use this issue to cause a denial of service. This issue was only addressed in Ubuntu 25.10. ( CVE-2025-59375 )
It was discovered that Expat 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 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 )
It was discovered that Expat incorrectly handled memory when parsing certain XML files. An attacker could use this issue to cause a denial of service. This issue was only addressed in Ubuntu 25.10. ( CVE-2025-59375 ) It was discovered that Expat 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 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 )
It was discovered that Expat incorrectly handled memory when parsing certain XML files. An attacker could use this issue to cause a denial of service. This issue was only addressed in Ubuntu 25.10. ( CVE-2025-59375 )
It was discovered that Expat 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 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 )
In general, a standard system update will make all the necessary changes.
The problem can be corrected by updating your system to the following package versions:
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.
The full story
This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.
