CVE-2026-35376
Published:April 22, 2026
Updated:April 23, 2026
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.
Affected Packages
https://github.com/uutils/coreutils.git (GITHUB):
Affected version(s) >=latest-commit <0.8.0Fix Suggestion:
Update to version 0.8.0coreutils (RUST):
Affected version(s) >=0.0.0 <0.8.0Fix Suggestion:
Update to version 0.8.0Related ResourcesĀ (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
2
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.5
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Time-of-check Time-of-use (TOCTOU) Race Condition