CVE-2026-35361

Publication date 22 April 2026

Last updated 10 November 2026

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
rust-coreutils	26.10 stonking	Not affected
	26.04 LTS resolute	Not affected
	25.10 questing	Ignored end of life, was needed
	24.04 LTS noble	Vulnerable
	22.04 LTS jammy	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
rust-coreutils	Upstream: 42b2ad8

Severity score breakdown

CVSS version: CVSS v3.0

Base score 3.4 · Low

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Unchanged
Confidentiality impact	Low
Integrity impact	Low
Availability impact	None

Scores

Parameter	Value
Base score	3.4 · Low
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N