Medium severity6.5NVD Advisory· Published Jun 26, 2026· Updated Jun 29, 2026
CVE-2026-47204
CVE-2026-47204
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.
Affected products
5(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*range: >=1.26.0,<1.35.13
- osv-coords2 versions
>= 1.26.0, < 1.35.13+ 1 more
- (no CPE)range: >= 1.26.0, < 1.35.13
- (no CPE)range: < 1.30.2-1.1
Patches
Vulnerability mechanics
References
1- github.com/envoyproxy/envoy/security/advisories/GHSA-3jxh-8p6x-7pf6nvdExploitVendor Advisory
News mentions
1- Envoy Proxy: Eleven Vulnerabilities Disclosed Together, Targeting DoS and Memory CorruptionVypr Intelligence · Jun 26, 2026