CVE-2026-35365 MEDIUM

CVE-2026-35365: uutils coreutils mv Denial of Service and Data Duplication via Improper Symlink Expansion

Vendor Uutils
Product coreutils
Weakness CWE-59
Published April 22, 2026
Last update April 22, 2026

CVSS base score

6.6/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity High

CVSS vector

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

What the vulnerability does

01Description

The mv utility in uutils coreutils improperly handles directory trees containing symbolic links during moves across filesystem boundaries. Instead of preserving symlinks, the implementation expands them, copying the linked targets as real files or directories at the destination. This can lead to resource exhaustion (disk space or time) if symlinks point to large external directories, unexpected duplication of sensitive data into unintended locations, or infinite recursion and repeated copying in the presence of symlink loops.

Key dates

02Disclosure timeline

April 22, 2026 CVE published
April 22, 2026 Record updated