CVE-2026-35355
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
22/04/2026
Last modified:
22/04/2026
Description
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.
Impact
Base Score 3.x
6.30
Severity 3.x
MEDIUM