{"id":"GO-2025-4075","summary":"Mattermost Server's OAuth 2.0 service is vulnerable to attack through Missing Authorization in github.com/mattermost/mattermost-server","details":"Mattermost Server's OAuth 2.0 service is vulnerable to attack through Missing Authorization in github.com/mattermost/mattermost-server","aliases":["CVE-2017-18872","GHSA-hgrp-fgm8-56g8"],"modified":"2026-03-03T04:57:05.234972Z","published":"2025-10-30T15:02:33Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2025-4075","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-hgrp-fgm8-56g8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18872"},{"type":"WEB","url":"http://github.com/mattermost/mattermost/commit/753386c2b2b06233d8bd977e3db29a4fe18098cb"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/8f6bb1570dd234c63de5241eff9fbb268aad358c"},{"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":"0"},{"fixed":"4.3.3+incompatible"},{"introduced":"4.4.0-rc1+incompatible"},{"fixed":"4.4.3+incompatible"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2025-4075.json"}}],"schema_version":"1.7.3"}