{"items":[{"id":"NVI-00009083","kind":"vulnerability","title":"Authlib: OpenID implicit grant checks raw scope instead of allowed scope before issuing ID tokens","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q686-2qmg-hqc7","CVE-2026-114619"],"plain_summary":"GitHub lists this reviewed advisory for authlib. 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-a8d19553d46d0127f9bad54ac1c3d682"],"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":"2026-10-27T15:38:55.000Z","value":"4.6 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-a8d19553d46d0127f9bad54ac1c3d682"}],"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-a8d19553d46d0127f9bad54ac1c3d682","url":"https://github.com/advisories/GHSA-q686-2qmg-hqc7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q686-2qmg-hqc7","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:51.534Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-a8d19553d46d0127f9bad54ac1c3d682"],"technology":"authlib","known_exclusions":[],"conditions_summary":"## Report metadata\n\n| Field | Value |\n| --- | --- |\n| Package | `authlib` (PyPI, `pkg:pypi/authlib`) |\n| Repository | https://github.com/authlib/authlib |\n| Component | `authlib.oidc.core.grants.implicit.OpenIDImplicitGrant.validate_authorization_request` |\n| Vulnerability class | Authorization bypass: a client's scope restriction is bypassed for OpenID Connect ID token issuance |\n| Verified against | `c529a61af40e3efe05286140e00fbdced07d7987` (v1.8.0). Earlier releases were not checked. |\n| API surface | Public API (`OpenIDImplicitGrant`, registered with `server.register_grant(...)`) |\n| Affected in default configuration | Yes. No non-default option is needed once `OpenIDImplicitGrant` is registered. Client metadata decides exposure: Authlib's standard `ClientMixin` checks response type and scope independently, so a client can be permitted `id_token` responses without being allowed the `openid` scope. |\n\n## Summary\n\n`OpenIDImplicitGrant.validate_authorization_request()` first runs the parent `ImplicitGrant` validation, which filters the requested scope through `client.get_allowed_scope()` and stores the result in `request.scope`. It then decides whether this is an OpenID request b","public_affected_ranges":["< 1.9.0"]}],"null_published_at":"2026-10-31T22:13:31.275Z","source_updated_at":"2026-10-27T15:38:55.000Z","source_disclosed_at":"2026-10-27T15:38:53.000Z","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":"2026-10-31T21:56:51.534Z"}],"next_cursor":null,"snapshot_revision":"42594"}