CVE-2026-35351 — MEDIUM (4.2)

Vulnerability 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.

CVSS Score

4.2

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Uutils	Coreutils	-

Related Weaknesses (CWE)

CWE-281

References

https://github.com/uutils/coreutils/issues/9714ExploitIssue TrackingVendor Advisory
https://github.com/uutils/coreutils/issues/9714ExploitIssue TrackingVendor Advisory

FAQ

What is CVE-2026-35351?

CVE-2026-35351 is a vulnerability with a CVSS score of 4.2 (MEDIUM). 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 destinatio...

How severe is CVE-2026-35351?

CVE-2026-35351 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-35351?

Check the references section above for vendor advisories and patch information. Affected products include: Uutils Coreutils.