VulnerabilityAnalyzed

CVE-2026-30892

crun is an open source OCI Container Runtime fully written in C.

HIGH 7.8EPSS 0.16%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.16% probability · 5th percentile
CISA KEV: Not listed
Weakness: CWE-269
Affected: crun project/crun
Source: security-advisories@github.com

References

https://github.com/containers/crun/commit/1bd7f42446999b0e76bc3d575392e05c943b0b01Patch
https://github.com/containers/crun/releases/tag/1.27Product
https://github.com/containers/crun/security/advisories/GHSA-4vg2-xjqj-7chjExploit, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.