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Medium RLSA-2026:6621 1 CVE

Moderate: crun security update

Published Apr 8, 2026 · Updated Apr 8, 2026

Ecosystem: Rocky Linux

Summary

crun is a OCI runtime

Security Fix(es):

* crun: crun: Privilege escalation due to incorrect parsing of the `--user` option (CVE-2026-30892)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 9 crun 0:1.27-1.el9_7

Vulnerabilities 1

  • None 0.0
    CVE-2026-30892

    Crun incorrectly parses `crun exec` option `-u`, leading to privilege escalation

    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…

    containers crun crun crun Debian Ubuntu Azure Linux Alpine

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2451576