{"id":"CVE-2019-16929","aliases":["GHSA-c9cg-q8r2-xvjq"],"url":"https://o3.security/vulnerability/CVE-2019-16929","summary":"Improper Authentication in Auth0.AuthenticationApi","details":"Auth0 auth0.net before 6.5.4 has Incorrect Access Control because IdentityTokenValidator can be accidentally used to validate untrusted ID tokens.","published":"2019-10-08T13:15:15.550Z","modified":"2026-07-08T20:29:59.073504Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"NuGet","name":"Auth0.AuthenticationApi","fixedVersion":"6.5.4"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://auth0.com/docs/security/bulletins/cve-2019-16929"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T20:29:59.073504Z"}}