CVE-2026-35372

Publication date 22 April 2026

Last updated 10 November 2026

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
rust-coreutils	26.10 stonking	Not affected
	26.04 LTS resolute	Not affected
	25.10 questing	Ignored end of life, was needed
	24.04 LTS noble	Vulnerable
	22.04 LTS jammy	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
rust-coreutils	Upstream: 394c4b1

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.0 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	Required
Scope	Unchanged
Confidentiality impact	None
Integrity impact	High
Availability impact	None

Scores

Parameter	Value
Base score	5.0 · Medium
Exploitability score	-
Impact score	-

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