CVE-2026-47204

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

26/06/2026

Last modified:

29/06/2026

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

6.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:envoyproxy:envoy::::::::	1.26.0 (including)	1.35.13 (excluding)
cpe:2.3:a:envoyproxy:envoy::::::::	1.36.0 (including)	1.36.9 (excluding)
cpe:2.3:a:envoyproxy:envoy::::::::	1.37.0 (including)	1.37.5 (excluding)
cpe:2.3:a:envoyproxy:envoy::::::::	1.38.0 (including)	1.38.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-47204

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools