CVE-2026-30892

NONE
2026-03-25 GitHub_M

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 26, 2026 - 00:12 vuln.today
CVE Published
Mar 25, 2026 - 23:57 nvd
NONE

Tags

Docker Linux Privilege Escalation Crun

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.

Analysis

crun versions 1.19 through 1.26 misparse the `-u` (--user) option during container execution, causing a numeric UID value of 1 to be incorrectly interpreted as UID 0 (root) instead, resulting in privilege escalation where containerized processes execute with root privileges instead of the intended unprivileged user. The vulnerability affects the containers/crun OCI runtime container (cpe:2.3:a:containers:crun:*:*:*:*:*:*:*:*) and has been patched in version 1.27. …

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Priority Score

0
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +0
POC: 0

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CVE-2026-30892 vulnerability details – vuln.today
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