CVE-2026-35353 LOW

CVE-2026-35353: uutils coreutils mkdir Permission Exposure Race Condition with -m

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

CVSS base score

3.3/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

The mkdir utility in uutils coreutils incorrectly applies permissions when using the -m flag by creating a directory with umask-derived permissions (typically 0755) before subsequently changing them to the requested mode via a separate chmod system call. In multi-user environments, this introduces a brief window where a directory intended to be private is accessible to other users, potentially leading to unauthorized data access.

Key dates

02Disclosure timeline

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