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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/envoyproxy/envoy/security/advisories/GHSA-3jxh-8p6x-7pf6	Exploit Vendor Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-3jxh-8p6x-7pf6	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::

History

25 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) Envoy es un proxy de borde y de servicio de código abierto diseñado para aplicaciones nativas de la nube. Desde 1.26.0 hasta 1.35.13, 1.36.9, 1.37.5 y 1.38.3, el filtro envoy.filters.http.grpc_stats falla (desreferencia de puntero nulo / fallo de segmentación) cuando una solicitud del protocolo Connect (Content-Type: application/connect+proto o application/connect+json) alcanza una ruta de respuesta directa. Una única solicitud HTTP no autenticada provoca el fallo del proceso de Envoy. Esta vulnerabilidad está corregida en 1.35.13, 1.36.9, 1.37.5 y 1.38.3.

Information

Published : 2026-06-26 18:16

Updated : 2026-10-25 17:10

NVD link : CVE-2026-47204

Mitre link : CVE-2026-47204

CVE.ORG link : CVE-2026-47204

JSON object : View

Products Affected

envoyproxy

envoy

CWE

CWE-476

NULL Pointer Dereference

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