GHSA-hpfw-mqm3-33jhMediumCVSS 4.7

uutils coreutils has a Link Following issue

Published
April 22, 2026
Last Modified
April 30, 2026

🔗 CVE IDs covered (1)

📋 Description

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 products1

  • rust/coreutils:<= 0.8.0

🔗 References (3)