uutils/coreutils · Security
uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition
- GHSA ID
- GHSA-q6m9-xj2w-xmrc
- CVE ID
- CVE-2026-35360
- Severity
- medium
- Published
- Updated
- CVSS
- 6.3 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
- CVSS v3
- 6.3 · CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Description
The touch utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file creation. When the utility identifies a missing path, it later attempts creation using File::create(), which internally uses O_TRUNC. An attacker can exploit this window to create a file or swap a symlink at the target path, causing touch to truncate an existing file and leading to permanent data loss.
CWEs
- CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition