HIGHVulnerability
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-controlled payload from the container image with host root privileges. The issue is a regression in crun 1.29. It affects crun >= 1.29
Properties
- severity
- HIGH
- score
- 7.8
- cve_id
- CVE-2026-84042
- signal_observed_at
- 2026-09-17T21:32:24+00:00
- vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- published_at
- 2026-09-10T09:17:03.260
- last_modified
- 2026-09-15T17:17:28.130
Related Entities (2)
HAS_WEAKNESS (1)
→[Weakness]Improper Privilege Management
DESCRIBED_BY (1)
→[Source]NVD
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