CVE-2026-30892
Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation
- State
- Published
- Severity
- 0.0 None
- Published
- Mar 25, 2026
- Updated
- Mar 26, 2026
- Reserved
- Mar 6, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 0.0 None | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N | GitHub_M |
Weaknesses
- CWE-269 Improper Privilege Management
Affected Products
| Product | Versions |
|---|---|
cruncontainers |
|
References
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