# CVE-2026-35352

> Vulnerability · severity: **HIGH** (CVSS 7).

## Description

A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mkfifo utility of uutils coreutils. The utility creates a FIFO and then performs a path-based chmod to set permissions. A local attacker with write access to the parent directory can swap the newly created FIFO for a symbolic link between these two operations. This redirects the chmod call to an arbitrary file, potentially enabling privilege escalation if the utility is run with elevated privileges.

## Key facts

- **CVE ID:** CVE-2026-35352
- **Published:** 2026-04-22
- **CVSS severity:** HIGH
- **CVSS base score:** 7
- **CWE codes:** CWE-367

## Affected products

- `uutils:coreutils`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-35352

## Citation

> AI Analytics. CVE-2026-35352. Retrieved 2026-08-10 from https://api.ai-analytics.org/cve/CVE-2026-35352. Derived from NIST NVD. Licensed CC0.

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