{"schema_version":"1.7.3","id":"GHSA-hm95-jx66-g2gh","published":"2025-09-15T12:31:25Z","modified":"2025-09-17T17:42:24.520016Z","aliases":["CVE-2025-9084","GO-2025-3960"],"summary":"Mattermost Open Redirect vulnerability","details":"Mattermost versions 10.5.x <= 10.5.9 fail to properly validate redirect URLs which allows attackers to redirect users to malicious sites via crafted OAuth login URLs.","affected":[{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.0.0-202508080704-39bd251fe4f600"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/09/GHSA-hm95-jx66-g2gh/GHSA-hm95-jx66-g2gh.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.5.0"},{"fixed":"10.5.10"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/09/GHSA-hm95-jx66-g2gh/GHSA-hm95-jx66-g2gh.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-9084"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/39bd251fe4f66b7e847fc6d653221886347ff160"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-601"],"github_reviewed":true,"github_reviewed_at":"2025-09-16T20:00:25Z","nvd_published_at":"2025-09-15T11:15:34Z","severity":"LOW"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N"}]}