uutils coreutils mv Silent Ownership Loss in Cross-Device Operations

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Summary

CVECVE-2026-35351
StatePUBLISHED
Assignercanonical
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-22 17:16:37 UTC
Updated2026-04-22 21:23:52 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.2 MEDIUM from [email protected]

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

Problem Types: CWE-281 | CWE-281 CWE-281: Improper Preservation of Permissions

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.2MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
3.1CNACVSS4.2MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Uutils Coreutils Not specified Linux, Unix, macOS

References

ReferenceSourceLinkTags
github.com/uutils/coreutils/issues/9714 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Zellic (en)

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