Packages
- libxmltok - XML Parser Toolkit, runtime libraries
Details
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)
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)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 24.04 LTS noble | libxmltok1t64 – 1.2-4.1ubuntu2.24.0.4.1+esm4 | ||
| 22.04 LTS jammy | libxmltok1 – 1.2-4ubuntu0.22.04.1~esm6 | ||
| 20.04 LTS focal | libxmltok1 – 1.2-4ubuntu0.20.04.1~esm6 | ||
| 18.04 LTS bionic | libxmltok1 – 1.2-4ubuntu0.18.04.1~esm6 | ||
| 16.04 LTS xenial | libxmltok1 – 1.2-3ubuntu0.16.04.1~esm5 | ||
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