CVE-2026-35376 (GCVE-0-2026-35376)

Vulnerability from cvelistv5 – Published: 2026-04-22 16:09 – Updated: 2026-04-22 17:14
VLAI
Title
uutils coreutils chcon Security Bypass and Mandatory Access Control (MAC) Inconsistency via TOCTOU Race Condition
Summary
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.
Severity
4.5 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 17:01 UTC
CWE
  • CWE-367 - Time-of-Check Time-of-Use (TOCTOU) Race Condition
Assigner
canonical CNA under the mitre root
CNA scorecard B 82/100 over 58 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Uutils coreutils Affected: 0 , < 0.8.0 (semver)
guessed Create a notification for this product.
Credits
Zellic
Show details on NVD website
To clipboard 

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