What’s Vulnerable › Vulnerabilities

CVE-2026-35361: uutils coreutils mknod Security Label Inconsistency and Broken Cleanup on SELinux Systems

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-22 · updated 2026-10-26
• Weakness: CWE-281

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.

Affected products

• Uutils coreutils: before 0.6.0 — fixed in 0.6.0

How to fix

Upgrade to a fixed version: Uutils coreutils 0.6.0. Check the vendor advisory for mitigations.

References

• https://github.com/uutils/coreutils/pull/10582
• https://github.com/uutils/coreutils/releases/tag/0.6.0
• https://github.com/uutils/coreutils/pull/10582

Get alerted when CVE-2026-35361 or the next vulnerability affects your stack