PT-2026-48937 · Mattermost · Mattermost
0X7Oda7123
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Published
2026-06-12
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Updated
2026-06-12
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CVE-2026-6689
CVSS v3.1
4.3
Medium
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Mattermost versions 11.6.x <= 11.6.1, 11.5.x <= 11.5.4, 10.11.x <= 10.11.15, 10.11.x <= 10.11.16 Fail to enforce PermissionInviteUser when setting AllowOpenInvite or AllowedDomains during team creation (the check was only applied on update/patch), which allows an authenticated user holding PermissionCreateTeam but not PermissionInviteUser on the resulting team to configure invite-controlled team settings (make the team publicly joinable via open invite and/or constrain membership via allowed domains) that they are not permitted to set on an existing team via POST /api/v4/teams with allow open invite: true and/or a non-empty allowed domains in the request body.. Mattermost Advisory ID: MMSA-2026-00655
Fix
Missing Authorization
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Weakness Enumeration
Related Identifiers
Affected Products
Mattermost