What’s Vulnerable › Vulnerabilities
CVE-2026-35351: uutils coreutils mv Silent Ownership Loss in Cross-Device Operations
- Severity: medium (CVSS 4.2 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-04-22 · updated 2026-10-26
- Weakness: CWE-281
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.
Affected products
- Uutils coreutils: all versions
References
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