
CVE catalog
CVE-2026-35376
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 look
- Severity
- Medium · CVSS 5.8
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.11% · Oct 25, 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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | rust-coreutils | sid | 0.12.0-1 | fixed |
| Debian | rust-coreutils | forky | 0.12.0-1 | fixed |
| Debian | rust-coreutils | trixie | 0.0.30-2 | vulnerable |
| Debian | rust-coreutils | bookworm | 0.0.17-2 | vulnerable |
| Cpe | rust-coreutils | Not reported | Not reported | vulnerable |
| Cpe | coreutils | Not reported | 0.8.0 | fixed |
| Ubuntu | rust-coreutils | 24.04 | 0.0.20-1 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.22-1 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.23-1 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.23-2 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.23-3 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.24-1 | vulnerable |
| Ubuntu | rust-coreutils | 24.04 | 0.0.24-2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.0.30-1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.0.30-2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.0.30-2ubuntu2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0-0ubuntu1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250711.2ba3a33-0ubuntu1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250711.2ba3a33-0ubuntu2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250711.2ba3a33-0ubuntu3 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250711.2ba3a33-0ubuntu4 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250801.cf79675-0ubuntu1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250813.4af2a84-0ubuntu2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250813.4af2a84-0ubuntu4 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250813.4af2a84-0ubuntu6 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.1.0+git20250813.4af2a84-0ubuntu7 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.2.2-0ubuntu1 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.2.2-0ubuntu2 | vulnerable |
| Ubuntu | rust-coreutils | 25.10 | 0.2.2-0ubuntu2.1 | vulnerable |
| Cpe | coreutils | Not reported | 0.8.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rust-coreutils | source | sid | 0.10.0-1 | not yet assigned | Not reported | [1136203] |
| Debian | rust-coreutils | source | forky | 0.10.0-1 | not yet assigned | Not reported | [1136203] |
| Debian | rust-coreutils | source | trixie | (unfixed) | not yet assigned | Not reported | [1136203] |
| Debian | rust-coreutils | source | bookworm | (unfixed) | not yet assigned | Not reported | [1136203] |
| Cpe | coreutils | cpe | Not reported | 0.8.0 | Not reported | Not reported | Not reported |
| Cpe | coreutils | cpe | Not reported | 0.8.0 | Not reported | NVD-CVE-2026-35376 | Not reported |
Notes
[trixie] rust-coreutils: Minor issue [bookworm] rust-coreutils: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [rust-coreutils]Affected
Details (2)
0.0.17-2· amd64 · bookwormAffected
nvd · rust-coreutils · debian · bookworm; nvd · rust-coreutils · debian · 12
0.0.17-2· arm64 · bookwormAffected
nvd · rust-coreutils · debian · bookworm; nvd · rust-coreutils · debian · 12
[Debian 13 (Trixie)]
- [rust-coreutils]Affected
Details (2)
0.0.30-2· amd64 · trixieAffected
nvd · rust-coreutils · debian · 13
0.0.30-2· arm64 · trixieAffected
nvd · rust-coreutils · debian · 13
Observed:
References
- [https://github.com/uutils/coreutils/pull/11402]
- [https://github.com/uutils/coreutils/releases/tag/0.8.0]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-35376]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-35376]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-35376]
- [https://security-tracker.debian.org/tracker/CVE-2026-35376]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35376.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]