{"id":"CVE-2025-58075","aliases":["GHSA-r6qj-894f-5hr2","GO-2025-4035"],"url":"https://o3.security/vulnerability/CVE-2025-58075","summary":"Arbitrary Mattermost Team can be joined by manipulating the SAML RelayState","details":"Mattermost versions 10.11.x <= 10.11.1, 10.10.x <= 10.10.2, 10.5.x <= 10.5.10 fail to verify a user has permission to join a Mattermost team using the original invite token which allows any attacked to join any team on a Mattermost server regardless of restrictions via manipulating the RelayState","published":"2025-10-16T08:20:06.939Z","modified":"2026-08-12T03:51:27.021461017Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","fixedVersion":"8.0.0-20250815100400-2d5cdc6e217e"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"10.11.2"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"10.10.3"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"10.5.11"}],"fix":{"url":"https://github.com/mattermost/mattermost/commit/0e478b2d895e89143c7732c7b33e16d98ace663d","label":"mattermost/mattermost@0e478b2"},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/58xxx/CVE-2025-58075.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-58075"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/0e478b2d895e89143c7732c7b33e16d98ace663d"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/2d5cdc6e217eb244e7f2122cb89f85140b6d982a"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/7a2ac23e207429d7db8acc3770908c15c0b5c33e"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:27.021461017Z"}}