Vulnerability Report

CVE-2026-47204

Title: Envoy gRPC stats filter null pointer dereference

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2026-47204.

CWE Category CWE-476

Published Date Jun 26, 2026

Modified Date Jun 29, 2026

Exploit Status Not Found

Score 6.5 CVSS v3.1

Exploit Probability (EPSS)

0.45%

Vulnerability Summary

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.

Impacted Vendors

enphase 1

envoyproxy 1

Reference Links

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

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

6.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-47204 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 29, 2026 MODIFIED

Vulnerability data updated via NVD.

June 27, 2026 MODIFIED

Vulnerability data updated via NVD.

June 26, 2026 MODIFIED

Vulnerability data updated via NVD.

June 26, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.