CVE-2026-35352: Uutils Coreutils

High severity, CVSS 7.0. EPSS: 0.1% chance of exploitation in the next 30 days.

A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mkfifo utility of uutils coreutils. The utility creates a FIFO and then performs a path-based chmod to set permissions. A local attacker with write access to the parent directory can swap the newly created FIFO for a symbolic link between these two operations. This redirects the chmod call to an arbitrary file, potentially enabling privilege escalation if the utility is run with elevated privileges.

Affected products

• Uutils Coreutils: affected versions not specified

Published 2026-04-22. Last modified 2026-06-17.