Dashboard / CVE-2026-47204

CVE-2026-47204

HIGH
MEDIUM Priority: 0.03 BB Relevance: 75/100
Published: 2026-06-26 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
envoyproxy envoy 1.26.0 – 1.35.13
envoyproxy envoy 1.36.0 – 1.36.9
envoyproxy envoy 1.37.0 – 1.37.5
envoyproxy envoy 1.38.0 – 1.38.3

References & Advisories (1)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.45%
Raw Score 0.004480
Percentile 38.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00448
2026-10-28
0.00448

Intelligence Sources

nvd ref →

External Links