CVE-2026-35351: uutils coreutils doesn't preserve file ownership during moves across different filesystem boundaries

CVE-2026-35351 · Severity: medium · CVSS 4.2 · Published 2026-04-22

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.

Technologies: coreutils (crates.io), Uutils Coreutils. Vendors: crates.io, Uutils.

Quick answers

Is CVE-2026-35351 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-35351 being exploited in the wild.
How severe is CVE-2026-35351?
Medium severity, with a CVSS score of 4.2, published 22 April 2026.
Which products and versions are affected?
coreutils (crates.io) SEMVER:introduced=0,last_affected=0.8.0.
Is there a fix for CVE-2026-35351?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-35351?
Check whether you run coreutils (crates.io) or Uutils Coreutils at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • coreutils (crates.io) SEMVER:introduced=0,last_affected=0.8.0
  • Uutils Coreutils

Identifiers

  • CVE-2026-35351
  • GHSA-957r-r8gc-vv3h

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