CVE-2026-16044

Low

Open

TLP:CLEAR

Insufficient validation of guest board admin privileges on archive import

NVD CVE.org

AI Analysis

No AI analysis yet.

Description

Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21 fail to prevent guest users from receiving Board Admin privileges during board archive import which allows a board member to escalate a guest user to Board Admin via importing a crafted .boardarchive file. Mattermost Advisory ID: MMSA-2026-00672

Details

CVSS Score: 3.9
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Confidence: 90%
Published: Aug 17, 2026
Last Modified: Aug 17, 2026

Notes

0

Log in to add a note

No notes yet. Click "Add Note" to create the first analysis note.

Opinions

0

Log in to add an opinion

No opinions yet. Be the first to assess this intelligence.