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CVE-2026-30892Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation
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.
Weakness (CWE):
CWE-269
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| containers | crun | >= 1.19, < 1.27 | |
| crun project | crun | 1.19 – < 1.27 |
References and patches
CPE matches (NVD) (1)
cpe:2.3:a:crun_project:crun:*:*:*:*:*:*:*:*≥ 1.19 < 1.27