Bug 2494195 (CVE-2026-47204) - CVE-2026-47204 envoy: Envoy: Denial of Service via Connect protocol request
Summary: CVE-2026-47204 envoy: Envoy: Denial of Service via Connect protocol request
Keywords:
Status: NEW
Alias: CVE-2026-47204
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-29 14:02 UTC by OSIDB Bzimport
Modified: 2026-07-02 17:00 UTC (History)
1 user (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-06-29 14:02:05 UTC 
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.
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