CVE-2026-35372

MEDIUM

uutils coreutils ln Security Bypass via Improper Handling of the --no-dereference Flag

Title source: cna

Description

A logic error in the ln utility of uutils coreutils allows the utility to dereference a symbolic link target even when the --no-dereference (or -n) flag is explicitly provided. The implementation previously only honored the "no-dereference" intent if the --force (overwrite) mode was also enabled. This flaw causes ln to follow a symbolic link that points to a directory and create new links inside that target directory instead of treating the symbolic link itself as the destination. In environments where a privileged user or system script uses ln -n to update a symlink, a local attacker could manipulate existing symbolic links to redirect file creation into sensitive directories, potentially leading to unauthorized file creation or system misconfiguration.

Scores

CVSS v3 5.0
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Details

CWE
CWE-61
Status published
Products (1)
Uutils/coreutils < 0.8.0
Published Apr 22, 2026
Tracked Since Apr 22, 2026