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CVE-2026-47204

🔶 medium
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Summary

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.

CVSS Score
6.5
Medium
EPSS Score
0.4
Exploit Probability
Published Date
2026-06-26
First Seen: 2026-06-27
📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 47.8% of all 330,245 vulnerabilities in our database.

#172,466
Below average severity
Severity Percentile
Last Modified 2026-06-27
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE IDs (Weakness Types)
CWE-476

📦 Affected Products 4

Vendor Product Status Affected Versions
envoyproxy envoy Affected
> 1.26.0 < 1.35.13
envoyproxy envoy Affected
> 1.36.0 < 1.36.9
envoyproxy envoy Affected
> 1.37.0 < 1.37.5
envoyproxy envoy Affected
> 1.38.0 < 1.38.3

🔗 References 1

https://github.com/envoyproxy/envoy/security/advisor...
Exploit Vendor Advisory

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-47207 🔶 medium 6.5 0.4 Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9... 2026-06-26
CVE-2026-47221 🔶 medium 5.9 0.4 Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.18.0 until 1.35.13, 1.36.9... 2026-06-26
CVE-2026-47692 🔶 medium 4.8 0.2 Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9... 2026-06-26
CVE-2026-26308 ⚠️ high 7.5 0.0 Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, the Envoy RBAC (Rol... 2026-03-10
CVE-2026-26309 🔶 medium 5.3 0.0 Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, an off-by-one write... 2026-03-10
CVE-2026-26310 🔶 medium 5.9 0.0 Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, calling Utility::ge... 2026-03-10
These CVEs affect the same products