{"schema_version":"1.9.0","id":"GHSA-34cx-hvm4-vx7j","published":"2022-05-24T17:21:06Z","modified":"2026-02-19T20:56:39.196393Z","aliases":["CVE-2017-18908","GO-2026-4476"],"summary":"Mattermost Server password reset email requests can be sent to attacker-provided email addresses","details":"An issue was discovered in Mattermost Server before 4.0.0, 3.10.1, and 3.9.1. A password reset request was sometimes sent to an attacker-provided e-mail address.","affected":[{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.9.1-rc1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-34cx-hvm4-vx7j/GHSA-34cx-hvm4-vx7j.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.10.0"},{"fixed":"3.10.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-34cx-hvm4-vx7j/GHSA-34cx-hvm4-vx7j.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18908"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/59139390ae927af2e879dbacfe4dadb1adac97c0"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/d3bc11be3acd3a73e6358d958b91427e2584ea71"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/e5065cf7575ee05c040945a4b00b7fd90bf39b83"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-287","CWE-640"],"github_reviewed":true,"github_reviewed_at":"2026-02-06T22:48:56Z","nvd_published_at":"2020-06-19T20:15:00Z","severity":"CRITICAL"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}