High Risk Code Execution Vulnerability in PlantUML for Ubuntu 22 and 24

High Risk Code Execution Vulnerability in PlantUML for Ubuntu 22 and 24

First seen 9 Feb 2026, 16:04 UTC Linuxsecurity 40.0

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A security flaw affecting PlantUML, used for creating UML diagrams, has been identified in Ubuntu 22 and 24. This vulnerability allows for high-risk code execution, impacting users who rely on this tool for documentation and project architecture. Users are advised to update to version 1.2026.1 to mitigate the risk.

Timeline

2026-01-16
CVE-2026-0858 published
2026-02-09
Articles published detailing the vulnerability in PlantUML