{"id":"GHSA-hm95-jx66-g2gh","revision":"34ef81fee3ea484d9b8e7efaba4b8661","records":[{"revision":"34ef81fee3ea484d9b8e7efaba4b8661","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-hm95-jx66-g2gh","aliases":["CVE-2025-9084","GO-2025-3960"],"title":"Mattermost Open Redirect vulnerability","description":"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.","state":0,"publishedAt":"2025-09-15T12:31:25+00:00","modifiedAt":"2025-09-17T17:42:24.520016+00:00","affected":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"8.0.0-202508080704-39bd251fe4f600"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"10.5.0"},{"kind":"fixed","version":"10.5.10"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"LOW"}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2025-9084","https://github.com/mattermost/mattermost/commit/39bd251fe4f66b7e847fc6d653221886347ff160","https://github.com/mattermost/mattermost","https://mattermost.com/security-updates"],"sourceUrl":"https://github.com/advisories/GHSA-hm95-jx66-g2gh","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-hm95-jx66-g2gh","identifiers":["GHSA-hm95-jx66-g2gh","CVE-2025-9084","GO-2025-3960"]},"retained":false,"historicalAffected":[]}],"coverage":[]}