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.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/uutils/coreutils/pull/10036 Issue Tracking, Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 3.3 · uutilsNVD modified 2026-10-26 21:10
Affected (CPE criteria) 1
cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*
References 2
- https://github.com/uutils/coreutils/pull/10036 Issue Tracking, Patch
- https://github.com/uutils/coreutils/releases/tag/0.6.0 Release Notes