uutils coreutils mknod Security Label Inconsistency and Broken Cleanup on SELinux Systems

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Summary

CVECVE-2026-35361
StatePUBLISHED
Assignercanonical
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-22 17:16:38 UTC
Updated2026-04-22 21:23:52 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 3.4 LOW from [email protected]

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

Problem Types: CWE-281 | CWE-459 | CWE-281 CWE-281: Improper Preservation of Permissions | CWE-459 CWE-459: Incomplete Cleanup

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary3.4LOWCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
3.1CNACVSS3.4LOWCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Uutils Coreutils affected 0.6.0 semver Linux, Unix, macOS

References

ReferenceSourceLinkTags
github.com/uutils/coreutils/pull/10582 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/uutils/coreutils/releases/tag/0.6.0 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Zellic (en)

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