CVE catalog
CVE-2026-35355
The install utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file installation. The implementation unlinks an existing destination file and th
- Severity
- Medium · CVSS 6.3
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.12% · Oct 25, 2026
The install utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file installation. The implementation unlinks an existing destination file and then recreates it using a path-based operation without the O_EXCL flag. A local attacker can exploit the window between the unlink and the subsequent creation to swap the path with a symbolic link, allowing them to redirect privileged writes to overwrite arbitrary system files.
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 | 0.6.0 | 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 | 0.6.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rust-coreutils | source | sid | 0.6.0-1 | not yet assigned | Not reported | Not reported |
| Debian | rust-coreutils | source | forky | 0.6.0-1 | not yet assigned | Not reported | Not reported |
| Debian | rust-coreutils | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | rust-coreutils | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | coreutils | cpe | Not reported | 0.6.0 | Not reported | Not reported | Not reported |
| Cpe | coreutils | cpe | Not reported | 0.6.0 | Not reported | NVD-CVE-2026-35355 | 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/10067]
- [https://github.com/uutils/coreutils/releases/tag/0.6.0]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-35355]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-35355]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-35355]
- [https://security-tracker.debian.org/tracker/CVE-2026-35355]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35355.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]