CVE-2026-35338
uutils coreutils chmod Path Traversal Bypass of --preserve-root
- State
- Published
- Severity
- 7.3 High
- Published
- Apr 22, 2026
- Updated
- Apr 24, 2026
- Reserved
- Apr 2, 2026
Description
A vulnerability in the chmod utility of uutils coreutils allows users to bypass the --preserve-root safety mechanism. The implementation only validates if the target path is literally / and does not canonicalize the path. An attacker or accidental user can use path variants such as /../ or symbolic links to execute destructive recursive operations (e.g., chmod -R 000) on the entire root filesystem, leading to system-wide permission loss and potential complete system breakdown.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.3 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H | canonical |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
coreutilsUutils |
|
References
- https://github.com/uutils/coreutils/pull/10033patchissue-tracking
- https://github.com/uutils/coreutils/releases/tag/0.6.0vendor-advisory
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