{"items":[{"id":"NVI-00017579","kind":"vulnerability","title":"Authorizer: Unvalidated redirect_uri in /authorize leaks OAuth2 tokens to attacker-controlled URL","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-h29v-hj44-q8cv","CVE-2026-54072"],"plain_summary":"GitHub lists this reviewed advisory for github.com/authorizerdev/authorizer. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-26df723faed3498e0185a24fe8211ab7"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-10T19:25:16.000Z","value":"9.3 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-26df723faed3498e0185a24fe8211ab7"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-26df723faed3498e0185a24fe8211ab7","url":"https://github.com/advisories/GHSA-h29v-hj44-q8cv","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-h29v-hj44-q8cv","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T23:34:12.429Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-26df723faed3498e0185a24fe8211ab7"],"technology":"github.com/authorizerdev/authorizer","known_exclusions":[],"conditions_summary":"## Summary\n\nThe `/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.\n\nPartial 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.\n\n## Vulnerable Code\n\n`internal/http_handlers/authorize.go`:\n\n```go\nredirectURI := strings.TrimSpace(gc.Query(\"redirect_uri\"))\n// ... no IsValidOrigin() call ...\n// response_type=token path (line ~263):\nif strings.Contains(redirectURI, \"?\") {\n    redirectURI = redirectURI + \"&\" + params\n} else {\n    redirectURI = redirectURI + \"?\" + params\n}\nhandleResponse(gc, responseMode, authURL, redirectURI, ...) // 302 to attacker URL\n```\n\nCompare with the fixed `oauth_login.go` in v2.0.1 which calls `validators.IsValidOrigin(redirectURI, h.Config.AllowedOrigins)`.\n\n## Steps","public_affected_ranges":["< 0.0.0-20260409051328-bd3f5baf6d3d"]}],"null_published_at":"2026-11-05T19:10:21.422Z","source_updated_at":"2026-07-10T19:25:16.000Z","source_disclosed_at":"2026-07-10T19:25:15.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-04T23:34:12.429Z"}],"next_cursor":null,"snapshot_revision":"42594"}