CVE-2026-35353

LOW3.3EPSS 0.01%

uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition

Published: 4/22/2026Modified: 5/5/2026
Also known as:GHSA-vf87-345h-9qhxDEBIAN-CVE-2026-35353

Description

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.

Affected packages (2)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1LOW3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References (6)