Vulnerability · Published Apr 22, 2026 · Assigned by canonical
CVE-2026-35365uutils coreutils mv Denial of Service and Data Duplication via Improper Symlink Expansion
Medium 6.6
In plain English
A medium-severity security flaw in coreutils from Uutils. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | rust-coreutils | no fix listed | DEBIAN-CVE-2026-35365 |
| Debian:13 | rust-coreutils | no fix listed | DEBIAN-CVE-2026-35365 |
| Debian:14 | rust-coreutils | 0.8.0-1 | DEBIAN-CVE-2026-35365 |
| Ubuntu:24.04:LTS | rust-coreutils | no fix listed | UBUNTU-CVE-2026-35365 |
| Ubuntu:25.10 | rust-coreutils | no fix listed | UBUNTU-CVE-2026-35365 |
Affected products (as reported)
Weakness: CWE-59 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
References
- https://github.com/uutils/coreutils/pull/10546 issue-tracking, patch
- https://github.com/uutils/coreutils/releases/tag/0.7.0 vendor-advisory