Description
The mknod utility in uutils coreutils fails to handle security labels atomically by creating device nodes before setting the SELinux context. If labeling fails, the utility attempts cleanup using std::fs::remove_dir, which cannot remove device nodes or FIFOs. This leaves mislabeled nodes behind with incorrect default contexts, potentially allowing unauthorized access to device nodes that should have been restricted by mandatory access controls.
Metrics
CVSS 3.1 4.4/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Uutils | coreutils | < 0.6.0 |
References
- https://github.com/uutils/coreutils/pull/10582Exploit, Issue Tracking, Patch
- https://github.com/uutils/coreutils/releases/tag/0.6.0Release Notes
- https://github.com/uutils/coreutils/pull/10582Exploit, Issue Tracking, Patch
Timeline
- Published
- Apr 22, 2026
- Last modified
- Oct 26, 2026
- NVD status
- Analyzed