{"id":"GO-2026-4298","summary":"Mattermost Server does not safeguard against phishing via error page links in github.com/mattermost/mattermost-server","details":"Mattermost Server does not safeguard against phishing via error page links in github.com/mattermost/mattermost-server","aliases":["CVE-2017-18891","GHSA-vrh2-rprg-rgc6"],"modified":"2026-03-03T04:57:51.410476Z","published":"2026-01-13T16:42:40Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4298","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-vrh2-rprg-rgc6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18891"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/pull/7378"},{"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":"4.0.5+incompatible"},{"introduced":"4.1.0+incompatible"},{"fixed":"4.1.1+incompatible"},{"introduced":"4.2.0-rc1+incompatible"},{"fixed":"4.2.0+incompatible"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4298.json"}}],"schema_version":"1.7.3"}