CVE-2026-47204 | Envoy is an open source edge and service proxy designed for … | CVSS 6.5 MEDIUM

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.

Metadata

CVE ID: CVE-2026-47204
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-05-18 22:07 UTC
Published: 2026-06-26 17:37 UTC
Last updated: 2026-06-26 17:37 UTC
Primary CWE: CWE-476
CWE-476: NULL Pointer Dereference
Vendor / Product: envoyproxy / envoy
Sources: cve.org · NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products (1)

Vendor	Product	Platform	Versions
envoyproxy	envoy	—	>= 1.38.0, < 1.38.3, >= 1.37.0, < 1.37.5, >= 1.36.0, < 1.36.9, >= 1.26.0, < 1.35.13

Weakness (CWE)

CWE	Source	Description
CWE-476	cna	CWE-476: NULL Pointer Dereference

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.5	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References (1)

https://github.com/envoyproxy/envoy/security/advisories/GHSA-3jxh-8p6x-7pf6 https://github.com/envoyproxy/envoy/security/advisories/GHSA-3jxh-8p6x-7pf6