Packages
- libxmltok - XML Parser Toolkit, developer libraries
Details
It was discovered that Expat, contained with the xmltok library did not
correctly handle certain integer arithmetic. If a user or automated
system were tricked into opening a specially crafted file, an attacker
could possibly cause a denial of service. (CVE-2026-56404, CVE-2026-56405)
It was discovered that Expat, contained with the xmltok library did not
correctly handle certain integer arithmetic. If a user or automated
system were tricked into opening a specially crafted file, an attacker
could possibly cause a denial of service. (CVE-2026-56404, CVE-2026-56405)
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 | libxmltok1-dev – 1.2-4.1ubuntu2.24.0.4.1+esm5 | ||
| libxmltok1t64 – 1.2-4.1ubuntu2.24.0.4.1+esm5 | |||
| 22.04 LTS jammy | libxmltok1 – 1.2-4ubuntu0.22.04.1~esm7 | ||
| libxmltok1-dev – 1.2-4ubuntu0.22.04.1~esm7 | |||
| 20.04 LTS focal | libxmltok1 – 1.2-4ubuntu0.20.04.1~esm7 | ||
| libxmltok1-dev – 1.2-4ubuntu0.20.04.1~esm7 | |||
| 18.04 LTS bionic | libxmltok1 – 1.2-4ubuntu0.18.04.1~esm7 | ||
| libxmltok1-dev – 1.2-4ubuntu0.18.04.1~esm7 | |||
| 16.04 LTS xenial | libxmltok1 – 1.2-3ubuntu0.1~esm1 | ||
| libxmltok1-dev – 1.2-3ubuntu0.1~esm1 | |||
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