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.
History

Thu, 26 Mar 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 26 Mar 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Containers
Containers crun
Vendors & Products Containers
Containers crun

Thu, 26 Mar 2026 00:15:00 +0000

Type Values Removed Values Added
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.
Title Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation
Weaknesses CWE-269
References
Metrics cvssV3_1

{'score': 0, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-26T18:10:16.318Z

Reserved: 2026-03-06T00:04:56.701Z

Link: CVE-2026-30892

cve-icon Vulnrichment

Updated: 2026-03-26T18:09:59.199Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-26T00:16:38.953

Modified: 2026-03-26T15:13:15.790

Link: CVE-2026-30892

cve-icon Redhat

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