CVE-2026-30892 NONE

CVE-2026-30892: Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation

Vendor Containers
Product crun
Weakness CWE-269
Published March 25, 2026
Last update March 26, 2026
View on NVD All CVEs

CVSS base score

0.0/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 25, 2026 CVE published
March 26, 2026 Record updated