GHSA-m976-87wm-48fmMediumCVSS 6.3

uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition

Published
April 22, 2026
Last Modified
April 30, 2026

🔗 CVE IDs covered (1)

📋 Description

A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit this window to replace the destination with a symbolic link. The subsequent privileged move operation will follow the symlink, allowing the attacker to redirect the write and overwrite an arbitrary target file with contents from the source.

🎯 Affected products1

  • rust/coreutils:<= 0.8.0

🔗 References (3)