Crun Project Crun vulnerabilities

CVE-2026-30892 [HIGH] CWE-269 CVE-2026-30892: crun is an open source OCI Container Runtime fully written in C. In versions 1.19 through 1.26, the 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.

CVE-2022-27650 [HIGH] CWE-276 CVE-2022-27650: A flaw was found in crun where containers were incorrectly started with non-empty default permission A flaw was found in crun where containers were incorrectly started with non-empty default permissions. A vulnerability was found in Moby (Docker Engine) where containers were started incorrectly with non-empty inheritable Linux process capabilities. This flaw allows an attacker with access to programs with inheritable file capabilities to elevate thos

CVE-2019-18837 [HIGH] CWE-59 CVE-2019-18837: An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check whet An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check whether a target is a symlink, resulting in access to files outside of the container. This occurs in libcrun/linux.c and libcrun/chroot_realpath.c.