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TI-2026-27503 Aliases CVE-2026-35365GHSA-h444-6j9x-p8vh

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

Priority LOW 28CWE-59Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
Low · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00161 5th percentileScored 2026-11-07
Fix Fixed coreutils (Uutils): 0.7.0uu_mv (crates.io): 0.7.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Uutilscoreutilsbefore 0.7.00.7.0Patch availableCNA
—uu_mv (crates.io)before 0.7.00.7.0Patch availableGHSA-h444-6j9x-p8vh
  • coreutils VendorUutils Affected before 0.7.0 Fixed in 0.7.0 Patch available CNA
  • uu_mv (crates.io) Vendor— Affected before 0.7.0 Fixed in 0.7.0 Patch available GHSA-h444-6j9x-p8vh

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*before 0.7.0VulnerableUutils
  • cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:* Versions before 0.7.0 Vulnerable ·Uutils

Remediation

  • Fix · CNA coreutils (Uutils) Fixed in 0.7.0
  • Fix · GHSA-h444-6j9x-p8vh uu_mv (crates.io) Fixed in 0.7.0 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Uutils coreutils — github.com/uutils/coreutils/releases/tag/0.7.0

    5 records Highest priority Priority LOW 5 LOW

    Other records, highest priority first

    • TI-2026-27487 uutils coreutils Path-Based Safety Bypass with --preserve-rootPriority LOW 33
    • TI-2026-27494 uutils coreutils install Arbitrary File Overwrite with -D via Path Component Symlink RacePriority LOW 27
    • TI-2026-27496 uutils coreutils cp Semantic Loss and Potential Denial of Service with -R via Device Node Stream ReadingPriority LOW 24
    Show all 5 records → Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35365
  2. 2026-10-03 Alias added: GHSA-h444-6j9x-p8vh

References

Patch 1

Advisory 2

Other 3

  • TI-2026-27506 uutils coreutils chroot Local Privilege Escalation and chroot Escape in via Name Service Switch (NSS) Injection CVSS 3.1HIGH 7.2
  • TI-2026-27498 uutils coreutils touch Arbitrary File Truncation via TOCTOU Race Condition CVSS 3.1MEDIUM 6.3
  • TI-2026-27488 uutils coreutils cp Unexpected Privileged Executable Creation with -p CVSS 3.1MEDIUM 6.6
  • TI-2026-27502 uutils coreutils mv Arbitrary File Overwrite via Cross-Device TOCTOU Race Condition CVSS 3.1MEDIUM 6.3
  • TI-2026-27493 uutils coreutils install Arbitrary File Overwrite via Symlink TOCTOU Race CVSS 3.1MEDIUM 6.3
  • TI-2026-27511 uutils coreutils ln Local Denial of Service via Improper Handling of Non-UTF-8 Filenames CVSS 3.1MEDIUM 5.5
See all 43 →

Sources

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