| Package | Affected versions | Patched versions |
|---|---|---|
| envoy | ≥ 1.26.0, < 1.35.13≥ 1.36.0, < 1.36.9≥ 1.37.0, < 1.37.5≥ 1.38.0, < 1.38.3 | 1.35.131.36.91.37.51.38.3 |
Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.26.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, the envoy.filters.http.grpc_stats filter crashes (null pointer dereference / segfault) when a Connect protocol request (Content-Type: application/connect+proto or application/connect+json) hits a direct_response route. A single unauthenticated HTTP request crashes the Envoy process. This vulnerability is fixed in 1.35.13, 1.36.9, 1.37.5, and 1.38.3.
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