CVE-2026-35345

MEDIUM5.3EPSS 0.01%

uutils coreutils has a Link Following Issue

Published: 4/22/2026Modified: 6/2/2026
Also known as:GHSA-xf75-659h-cgg5CGA-6wcj-9j56-8cjgDEBIAN-CVE-2026-35345

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 Unlike GNU tail, the uutils implementation continues to monitor a path after it has been replaced by a symbolic link, subsequently outputting the contents of the link's target.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 packages (2)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1MEDIUM5.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

References (4)