GitHub Advisoryadvisory · crates.io
GHSA-xf75-659h-cgg5 uutils coreutils has a Link Following Issue
MEDIUM
Official page ↗
- Aliases
- CVE-2026-35345
- Ecosystem
- crates.io
- Packages
- coreutils
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
- Weaknesses
- CWE-59
- Reviewed
- 2026-04-29
Affected packages
• crates.io coreutils: <= 0.8.0 (no fix yet)
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 Unlike GNU tail, the uutils implementation continues to monitor a path after it has been replaced by a symbolic link, subsequently outputting the contents of the link's target.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.
Related
Alias · CVE (1)
- CVE-2026-35345 A vulnerability in the tail utility of uutils coreutils allows for the exfiltration of sensitive file contents when using the --follow=name… vulnerability
Weakness · CWE (1)
- CWE-59 Improper Link Resolution Before File Access weakness