CVE-2026-35365

uutils coreutils mv Denial of Service and Data Duplication via Improper Symlink Expansion

Published Apr 22, 2026 CVSS 3.1 · 6.6 Medium EPSS < 1% KEV · Not listed
Description
The mv utility in uutils coreutils improperly handles directory trees containing symbolic links during moves across filesystem boundaries. Instead of preserving symlinks, the implementation expands them, copying the linked targets as real files or directories at the destination. This can lead to resource exhaustion (disk space or time) if symlinks point to large external directories, unexpected duplication of sensitive data into unintended locations, or infinite recursion and repeated copying in the presence of symlink loops.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-66fx-fqv6-5wwx uutils coreutils has a Link Following issue
Github GHSA Github GHSA GHSA-h444-6j9x-p8vh mv: symlinks expanded during cross-device move (resource exhaustion / data duplication)
History
Type Values Removed Values Added
CPEs cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*
Type Values Removed Values Added
First Time appeared Uutils
Uutils coreutils
Vendors & Products Uutils
Uutils coreutils
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The mv utility in uutils coreutils improperly handles directory trees containing symbolic links during moves across filesystem boundaries. Instead of preserving symlinks, the implementation expands them, copying the linked targets as real files or directories at the destination. This can lead to resource exhaustion (disk space or time) if symlinks point to large external directories, unexpected duplication of sensitive data into unintended locations, or infinite recursion and repeated copying in the presence of symlink loops.
Title uutils coreutils mv Denial of Service and Data Duplication via Improper Symlink Expansion
Weaknesses CWE-59
References
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
canonical
Published
Updated
Apr 22, 2026, 5:59 PM
Reserved
Apr 2, 2026, 12:58 PM
Status
Analyzed
Published
Apr 22, 2026, 5:16 PM
Modified
Oct 26, 2026, 9:10 PM