CVE-2026-3113

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

Score

CVSS 3.1 5.5 Medium

Status

Analyzed - responsibledisclosure@mattermost.com

Published

2026-03-26

Last modified

2026-03-26

Weaknesses

CWE-732

Affected products

• Mattermost (Mattermost)
• Mattermost Server (Mattermost)

References

• https://mattermost.com/security-updates