Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a state query param is present on any response that looks like an OAuth redirect response. Sending it a request with the URI path equivalent to the redirect path, without the state parameter, will lead to abnormal termination of Envoy process. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 contain a patch. The issue can also be mitigated by locking down OAuth traffic, disabling the filter, or by filtering traffic before it reaches the OAuth filter (e.g. via a lua script).
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Envoy | Envoyproxy | * | 1.22.9 (excluding) |
| Envoy | Envoyproxy | 1.23.0 (including) | 1.23.6 (excluding) |
| Envoy | Envoyproxy | 1.24.0 (including) | 1.24.4 (excluding) |
| Envoy | Envoyproxy | 1.25.0 (including) | 1.25.3 (excluding) |