What’s Vulnerable › Vulnerabilities

CVE-2026-35365: uutils coreutils mv Denial of Service and Data Duplication via Improper Symlink Expansion

• Severity: medium (CVSS 6.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-22 · updated 2026-10-26
• Weakness: CWE-59

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.

Affected products

• Uutils coreutils: before 0.7.0 — fixed in 0.7.0

How to fix

Upgrade to a fixed version: Uutils coreutils 0.7.0. Check the vendor advisory for mitigations.

References

• https://github.com/uutils/coreutils/pull/10546
• https://github.com/uutils/coreutils/releases/tag/0.7.0

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