CVE-2026-47204
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.
- Score
- CVSS 3.1 7.5 High
- Status
- Modified - security-advisories@github.com
- Published
- 2026-06-26
- Last modified
- 2026-10-25
- Weaknesses
- CWE-476
Affected products
References
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-3jxh-8p6x-7pf6
