---
id: CVE-2026-35362
aliases:
  - GHSA-w6xc-g9qj-vp32
title: 'uucore: safe_traversal TOCTOU protection only enabled on Linux'
summary: 'uucore: safe_traversal TOCTOU protection only enabled on Linux'
severity: low
cvss: 3.6
cwe:
  - CWE-367
vendor: uucore
product: uucore
ecosystem: rust
affected:
  - uucore < 0.6.0
patched:
  - uucore 0.6.0
published: '2026-07-06'
updated: '2026-07-06'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-w6xc-g9qj-vp32'
references:
  - url: >-
      https://github.com/uutils/coreutils/security/advisories/GHSA-w6xc-g9qj-vp32
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-35362'
  - url: 'https://github.com/uutils/coreutils/pull/9792'
  - url: >-
      https://github.com/uutils/coreutils/commit/30239e69a328e76d2377f2a0bc02fbde61c34280
  - url: 'https://github.com/uutils/coreutils/releases/tag/0.6.0'
  - url: 'https://github.com/advisories/GHSA-w6xc-g9qj-vp32'
tags:
  - ghsa
  - rust
epss: 0.0018
epssPercentile: 0.07849
ingestedAt: '2026-07-06T20:46:12.663Z'
---

## Overview

The safe_traversal module in uutils coreutils, which provides protection against Time-of-Check to Time-of-Use (TOCTOU) symlink races using file-descriptor-relative syscalls, is incorrectly limited to Linux targets. On other Unix-like systems such as macOS and FreeBSD, the utility fails to utilize these protections, leaving directory traversal operations vulnerable to symlink race conditions.

---
_Zellic finding 3.59. Reported in the Zellic *uutils coreutils Program Security Assessment* (for Canonical, Jan 2026), audited commit `3a07ffc5a9bd4c283e75afa548ba1f1957bad242`._

## Affected packages

- `uucore < 0.6.0`

## Remediation

Upgrade to a patched release:

- `uucore 0.6.0`