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.
Affected products
uutils: coreutils
References2
- github.com/uutils/coreutils/issues/10019 ExploitIssue TrackingVendor Advisory
- github.com/uutils/coreutils/issues/10019 ExploitIssue TrackingVendor Advisory
Metrics
- CVSS 3.1
-
6.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H - EPSS — exploit probability
- 0% percentile: 1 · as of 13 November 2026
- CWE
- CWE-367
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