CVE-2026-3113 MEDIUM

CVE-2026-3113: mmctl export download command doesn’t restrict permissions to created file to file owner

Vendor Mattermost
Product Mattermost
Weakness CWE-732
Published March 26, 2026
Last update March 26, 2026
View on NVD All CVEs

CVSS base score

5.0/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to set permissions on downloaded bulk export which allows other local users on the server to be able to read contents of the bulk export.. Mattermost Advisory ID: MMSA-2026-00593

Key dates

02Disclosure timeline

March 26, 2026 CVE published
March 26, 2026 Record updated