{"cve":"CVE-2026-54072","nvd":{"published":"2026-09-11T19:17:42.663","modified":"2026-09-30T17:51:56.193","status":"Deferred","description":"Authorizer is an open-source, self-hostable authentication and authorization server. Prior to version 2.2.1, the `/authorize` endpoint accepts any `redirect_uri` without validating it against `AllowedOrigins`. When `response_type=token` or `response_type=id_token`, the server appends `access_token`, `id_token`, and `refresh_token` as query parameters and issues a 302 redirect to the attacker-supplied URL. An unauthenticated attacker can obtain the required `client_id` from the public `/graphql?query={meta{client_id}}` endpoint. A partial fix was applied in v2.0.1 to other handlers (`oauth_login`, `verify_email`, `magic_link_login`, `forgot_password`, `invite_members`, `oauth_callback`) but `/authorize` was not included. Version 2.2.1 contains a more complete fix.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","score":9.3},"cwes":["CWE-601"],"references":["https://github.com/authorizerdev/authorizer/security/advisories/GHSA-h29v-hj44-q8cv","https://github.com/authorizerdev/authorizer/security/advisories/GHSA-h29v-hj44-q8cv"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-54072","score":0.00463,"percentile":0.39841,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-h29v-hj44-q8cv","url":"https://osv.dev/vulnerability/GHSA-h29v-hj44-q8cv","summary":"Authorizer: Unvalidated redirect_uri in /authorize leaks OAuth2 tokens to attacker-controlled URL","modified":"2026-07-21T19:19:13.137949324Z","packages":[{"ecosystem":"Go","name":"github.com/authorizerdev/authorizer","purl":"pkg:golang/github.com/authorizerdev/authorizer","ranges":["<0.0.0-20260409051328-bd3f5baf6d3d"],"fixed":["0.0.0-20260409051328-bd3f5baf6d3d"]}]},{"id":"GO-2026-5959","url":"https://osv.dev/vulnerability/GO-2026-5959","summary":"Authorizer: Unvalidated redirect_uri in /authorize leaks OAuth2 tokens to attacker-controlled URL in github.com/authorizerdev/authorizer","modified":"2026-07-21T19:15:27.754638332Z","packages":[{"ecosystem":"Go","name":"github.com/authorizerdev/authorizer","purl":"pkg:golang/github.com/authorizerdev/authorizer","ranges":["<0.0.0-20260409051328-bd3f5baf6d3d"],"fixed":["0.0.0-20260409051328-bd3f5baf6d3d"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}