medium6.5
CVE-2026-47204
Envoy is an open source edge and service proxy designed for cloud-native applications.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Envoyproxy | Envoy | from 1.26.0 before 1.35.13 from 1.36.0 before 1.36.9 from 1.37.0 before 1.37.5 from 1.38.0 before 1.38.3 |