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Vulnerability record · CVE-2026-30892 · published 26 March 2026

CVE-2026-30892: Crun project crun improper privilege management vulnerability

Crun Project · Crun

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.

7.8 CVSS 3.1 High EPSS 0.17% · top 94.3% CWE-269 · Improper privilege management
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/containers/crun/commit/1bd7f42446999b0e76bc3d575392e05c943b0b01 Patch
https://github.com/containers/crun/releases/tag/1.27 Product
https://github.com/containers/crun/security/advisories/GHSA-4vg2-xjqj-7chj ExploitVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-30892), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.