PT-2026-115506 · Mattermost · Mattermost
CVSS v3.1
7.1
High
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to verify the integrity of the SAML RelayState POST parameter which allows an authenticated SAML user to join any team, including invite-only teams, via forging the team id or invite id fields in the RelayState.. Mattermost Advisory ID: MMSA-2026-00727
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Mattermost