CVE-2026-35376

The record

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

Related vulnerabilities

• GHSA-6g8r-74qp-6859 uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition Same vulnerability
• GHSA-532v-xp3f-837c uutils coreutils has an Incorrect Provision of Specified Functionality Issue in its cut… Also affects coreutils
• GHSA-53gr-wmf4-8hh3 uutils coreutils's User Interface (UI) Misrepresents Critical Information Also affects coreutils
• GHSA-5pv5-xh52-hvrp uutils coreutils has an Incorrect Short Circuit Evaluation Issue Also affects coreutils
• GHSA-5v4g-vw9x-h534 uutils coreutils has an Improper Input Validation Issue in its env Utility Also affects coreutils
• GHSA-4wrp-79m8-9m9p uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition Also affects coreutils
• GHSA-fhr3-xh3q-69w6 uutils coreutils has an Incorrect Provision of Specified Functionality Issue Also affects coreutils
• GHSA-m2pg-c7m6-77pj uutils coreutils has an Improper Input Validation Issue in its cut Utility Also affects coreutils