CVE-2026-35353

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.

CVSS 3.1

3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

0.1% chance of exploitation in the next 30 days; higher than 0% of CVEs (scores of 2026-10-26)

CWE

CWE-367

Published

2026-04-22

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• uutils:coreutils

Packages (OSV)

References

• https://github.com/uutils/coreutils/pull/10036
• https://github.com/uutils/coreutils/releases/tag/0.6.0

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