CVE-2026-35351 uutils coreutils mv Silent Ownership Loss in Cross-Device Operations

What is CVE-2026-35351?

CVE-2026-35351 is a medium-severity vulnerability in Uutils coreutils, published on 22 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The mv utility in uutils coreutils fails to preserve file ownership during moves across different filesystem boundaries. The utility falls back to a copy-and-delete routine that creates the destination file using the caller's UID/GID rather than the source's metadata. This flaw breaks backups and migrations, causing files moved by a privileged user (e.g., root) to become root-owned unexpectedly, which can lead to information disclosure or restricted access for the intended owners.

Weakness: CWE-281

Which versions are affected by CVE-2026-35351?

2 open source packages ship an affected version, including coreutils. It affects 1 product.

Products include Uutils Coreutils.

How do I fix CVE-2026-35351?

Apply the vendor's patch.

Is CVE-2026-35351 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35351 exists.

Other vulnerabilities in Uutils coreutils

• CVE-2026-35338 uutils coreutils chmod Path Traversal Bypass of --preserve-root High 7.3
• CVE-2026-35368 uutils coreutils chroot Local Privilege Escalation and chroot Escape in via Name Service Switch (NSS) Injection High 7.2
• CVE-2026-35341 uutils coreutils mkfifo Unauthorized Permission Change on Existing Files High 7.1
• CVE-2026-35352 uutils coreutils mkfifo Privilege Escalation via TOCTOU Race Condition High 7.0
• CVE-2026-35349 uutils coreutils Path-Based Safety Bypass with --preserve-root Medium 6.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-35351, GHSA-957r-r8gc-vv3h, UBUNTU-CVE-2026-35351.