{"id":"GO-2026-5314","summary":"OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims in github.com/oauth2-proxy/oauth2-proxy","details":"OAuth2 Proxy has an Authorization Bypass in Email Domain Validation via Malformed Multi-@ Email Claims in github.com/oauth2-proxy/oauth2-proxy","aliases":["BIT-oauth2-proxy-2026-40574","CVE-2026-40574","GHSA-c5c4-8r6x-56w3"],"modified":"2026-06-25T19:56:30.792437450Z","published":"2026-06-25T18:43:19Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-5314","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/oauth2-proxy/oauth2-proxy/security/advisories/GHSA-c5c4-8r6x-56w3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40574"}],"affected":[{"package":{"name":"github.com/oauth2-proxy/oauth2-proxy","ecosystem":"Go","purl":"pkg:golang/github.com/oauth2-proxy/oauth2-proxy"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-5314.json"}},{"package":{"name":"github.com/oauth2-proxy/oauth2-proxy/v7","ecosystem":"Go","purl":"pkg:golang/github.com/oauth2-proxy/oauth2-proxy/v7"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"7.15.2"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-5314.json"}}],"schema_version":"1.7.5"}