CVE-2026-35353
Duplicate Advisory: uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition
3.3
LOW
CVSS 3.1
EPSS 0.10%
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.
How to fix CVE-2026-35353
To remediate CVE-2026-35353, upgrade the affected package to a fixed version below.
- —upgrade to 0.6.0 or later
- —upgrade to 0.6.0 or later
Is CVE-2026-35353 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0.6.0
- from 0, < 0.6.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |