CVE-2026-30892: Crun Project Crun

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

crun is an open source OCI Container Runtime fully written in C. In versions 1.19 through 1.26, the `crun exec` option `-u` (`--user`) is incorrectly parsed. The value `1` is interpreted as UID 0 and GID 0 when it should have been UID 1 and GID 0. The process thus runs with higher privileges than expected. Version 1.27 patches the issue.

Affected products

• Crun Project Crun: from 1.19, before 1.27 (fixed in 1.27)

Published 2026-03-26. Last modified 2026-06-17.