CVE-2026-35360 MEDIUM

CVE-2026-35360: uutils coreutils touch Arbitrary File Truncation via TOCTOU Race Condition

Vendor Uutils
Product coreutils
Weakness CWE-367
Published April 22, 2026
Last update April 22, 2026

CVSS base score

6.3/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

What the vulnerability does

01Description

The touch utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file creation. When the utility identifies a missing path, it later attempts creation using File::create(), which internally uses O_TRUNC. An attacker can exploit this window to create a file or swap a symlink at the target path, causing touch to truncate an existing file and leading to permanent data loss.

Key dates

02Disclosure timeline

April 22, 2026 CVE published
April 22, 2026 Record updated