HIGH 7.8 NVD
CVE-2026-84042
A flaw was found in crun. When crun is built with libkrun and a container is started rootful with passt networking (krun.use_passt), crun can execute attacker-c
A flaw was found in crun. When crun is built with libkrun and a container is started rootful with passt networking (krun.use_passt), crun can execute attacker-controlled payload from the container image with host root privileges. The issue is a regression in crun 1.29. It affects crun >= 1.29
References
- https://access.redhat.com/security/cve/CVE-2026-84042
- https://bugzilla.redhat.com/show_bug.cgi?id=2531222
- https://github.com/containers/crun/
This high severity vulnerability with a CVSS score of 7.8 was published on 2026-09-10 via NVD.
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