{"id":"GO-2026-4463","summary":"Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations in github.com/mattermost/mattermost-server","details":"Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations in github.com/mattermost/mattermost-server.\n\nNOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.\n\n(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)\n\nThe additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.7.5-0.20170421192444-247cd1e51a8c.","aliases":["CVE-2017-18917","GHSA-jxc4-w54c-qv5r"],"modified":"2026-02-19T20:41:04.609917Z","published":"2026-02-17T18:09:06Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4463","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-jxc4-w54c-qv5r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18917"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/247cd1e51a8c943628dc650e87e794b06aad4c2b"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/b74e85653660525d351d090a1e1874ae933bcbc8"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"affected":[{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.8.0+incompatible"},{"fixed":"3.8.2+incompatible"}]}],"ecosystem_specific":{"custom_ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7.5-0.20170421192444-247cd1e51a8c"}]}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4463.json"}}],"schema_version":"1.7.3"}