CVE-2026-35351
uutils coreutils mv Silent Ownership Loss in Cross-Device Operations
- State
- Published
- Severity
- 4.2 Medium
- Published
- Apr 22, 2026
- Updated
- Apr 22, 2026
- Reserved
- Apr 2, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.2 Medium | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L | canonical |
Weaknesses
- CWE-281 Improper Preservation of Permissions
Affected Products
| Product | Versions |
|---|---|
coreutilsUutils |
References
- https://github.com/uutils/coreutils/issues/9714issue-tracking
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