{"schema_version":"1.7.5","id":"GO-2026-4861","published":"2026-03-26T20:33:09Z","modified":"2026-03-26T21:04:11.232859Z","aliases":["CVE-2019-8400","GHSA-7v6r-w4r6-mhch"],"summary":"Hydra has Reflected XSS via error_hint parameter in github.com/ory/hydra","details":"Hydra has Reflected XSS via error_hint parameter in github.com/ory/hydra.\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/ory/hydra before v1.4.8.","affected":[{"package":{"name":"github.com/ory/hydra","ecosystem":"Go","purl":"pkg:golang/github.com/ory/hydra"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{"custom_ranges":[{"events":[{"introduced":"0"},{"fixed":"1.4.8"}],"type":"ECOSYSTEM"}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4861.json"}}],"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-7v6r-w4r6-mhch"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-8400"},{"type":"FIX","url":"https://github.com/ory/hydra/commit/9b5bbd48a72096930af08402c5e07fce7dd770f3"},{"type":"WEB","url":"https://drive.google.com/file/d/1-25expUYVfK6vsiCmEabUCuelOP7aUDj/view?usp=drivesdk"},{"type":"WEB","url":"https://github.com/ory/hydra/blob/master/CHANGELOG.md#v100-rc3oryos9-2018-12-06"},{"type":"WEB","url":"https://hackerone.com/reports/456333"},{"type":"WEB","url":"https://www.youtube.com/watch?v=RIyZLeKEC8E"}],"database_specific":{"review_status":"UNREVIEWED","url":"https://pkg.go.dev/vuln/GO-2026-4861"}}