CVE-2026-35376 Affecting uutils package, versions <0.9.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.09% (1st percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-UUTILS-17134272
  • published3 Jun 2026
  • disclosed22 Apr 2026

Introduced: 22 Apr 2026

CVE-2026-35376  (opens in a new tab)

How to fix?

Upgrade Chainguard uutils to version 0.9.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream uutils package and not the uutils package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the chcon utility of uutils coreutils during recursive operations. The implementation resolves recursive targets using a fresh path lookup (via fts_accpath) rather than binding the traversal and label application to the specific directory state encountered during traversal. Because these operations are not anchored to file descriptors, a local attacker with write access to a directory tree can exploit timing-sensitive rename or symbolic link races to redirect a privileged recursive relabeling operation to unintended files or directories. This vulnerability breaks the hardening expectations for SELinux administration workflows and can lead to the unauthorized modification of security labels on sensitive system objects.

CVSS Base Scores

version 3.1