# CVE-2026-35359

> Vulnerability · severity: **MEDIUM** (CVSS 4.7).

## Description

A Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the cp utility of uutils coreutils allows an attacker to bypass no-dereference intent. The utility checks if a source path is a symbolic link using path-based metadata but subsequently opens it without the O_NOFOLLOW flag. An attacker with concurrent write access can swap a regular file for a symbolic link during this window, causing a privileged cp process to copy the contents of arbitrary sensitive files into a destination controlled by the attacker.

## Key facts

- **CVE ID:** CVE-2026-35359
- **Published:** 2026-04-22
- **CVSS severity:** MEDIUM
- **CVSS base score:** 4.7
- **CWE codes:** CWE-59, CWE-367

## Affected products

- `uutils:coreutils`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-35359

## Citation

> AI Analytics. CVE-2026-35359. Retrieved 2026-07-15 from https://api.ai-analytics.org/cve/CVE-2026-35359. Derived from NIST NVD. Licensed CC0.

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