CVEvulnerability
CVE-2026-84042
7.8 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-10
- Last modified
- 2026-09-15
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-269
Description
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
Related
Weakness · CWE (1)
- CWE-269 Improper Privilege Management weakness
References
- https://access.redhat.com/security/cve/CVE-2026-84042 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2531222 bugzilla.redhat.com
- https://github.com/containers/crun/ github.com