GHSA-xf75-659h-cgg5MediumCVSS 5.3

uutils coreutils has a Link Following Issue

Published
April 22, 2026
Last Modified
April 29, 2026

🔗 CVE IDs covered (1)

📋 Description

A vulnerability in the tail utility of uutils coreutils allows for the exfiltration of sensitive file contents when using the --follow=name option. Unlike GNU tail, the uutils implementation continues to monitor a path after it has been replaced by a symbolic link, subsequently outputting the contents of the link's target. In environments where a privileged user (e.g., root) monitors a log directory, a local attacker with write access to that directory can replace a log file with a symlink to a sensitive system file (such as /etc/shadow), causing tail to disclose the contents of the sensitive file.

🎯 Affected products1

  • rust/coreutils:<= 0.8.0

🔗 References (3)