CVE-2026-35351 | uutils coreutils mv Silent Ownership Loss in Cross-Device Operations

Exp

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.

Published: 2026-04-22 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-35351 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.13%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2026-35351

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2026-35351

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.01% 0.13% +0.12%
2 2026-04-23 — 0.01% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-35351

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.2 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 0.8 3.4 [email protected]

Weakness enumeration for CVE-2026-35351

GitHub Security Advisory for CVE-2026-35351

GHSA-957r-r8gc-vv3h · Severity: medium · Ecosystem: rust — uutils coreutils doesn't preserve file ownership during moves across different filesystem boundaries

OS Trackers for CVE-2026-35351

vendor priority summary link
debian not yet assigned CVE-2026-35351 not yet assigned priority: Debian including 1 source packages (rust-coreutils), 4 status rows across 4 suites (bookworm, forky, sid, trixie): open 2, resolved 2. https://security-tracker.debian.org/tracker/CVE-2026-35351
ubuntu medium CVE-2026-35351 medium priority: Ubuntu including 1 source packages (rust-coreutils), 5 status rows across 5 suites (jammy, noble, questing, resolute, upstream): needed 4, DNE 1. https://ubuntu.com/security/CVE-2026-35351

Affected software / configurations for CVE-2026-35351

Vendor Product Version Raw CPE
uutils coreutils — cpe:2.3:a:uutils:coreutils:-:*:*:*:*:rust:*:*

References for CVE-2026-35351

URL Tags
https://github.com/uutils/coreutils/issues/9714 Exploit Issue Tracking Vendor Advisory
cvelogic Threat Intelligence