GitHub Advisoryadvisory · crates.io

GHSA-xf75-659h-cgg5 uutils coreutils has a Link Following Issue

MEDIUM Published 2026-04-22 Modified 2026-04-29 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 Unlike GNU tail, the uutils implementation continues to monitor a path after it has been replaced by a symbolic link, subsequently outputting the contents of the link's target.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

References