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.
Severity (CVSS)
| Base score | 6.5 |
|---|---|
| Severity | Medium |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Provided by | CNA |
Weaknesses
- CWE-476 — CWE-476: NULL Pointer Dereference
Affected products
| Vendor | Product | 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 |
References
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-3jxh-8p6x-7pf6 (x_refsource_CONFIRM)
Generated from the official CVE List on 27 Jun 2026 07:02 UTC.