CVE-2026-35359: Uutils Coreutils

Medium severity, CVSS 4.7. EPSS: 0.1% chance of exploitation in the next 30 days.

A Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the cp utility of uutils coreutils allows an attacker to bypass no-dereference intent. The utility checks if a source path is a symbolic link using path-based metadata but subsequently opens it without the O_NOFOLLOW flag. An attacker with concurrent write access can swap a regular file for a symbolic link during this window, causing a privileged cp process to copy the contents of arbitrary sensitive files into a destination controlled by the attacker.

Affected products

• Uutils Coreutils: affected versions not specified

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