---
id: CVE-2026-53715
title: >-
  Envoy Gateway is an open source project for managing Envoy Proxy as a
  standalone or Kubernetes-based application gateway
summary: >-
  Envoy Gateway is an open source project for managing Envoy Proxy as a
  standalone or Kubernetes-based application gateway. Prior to 1.7.4 and 1.8.1,
  HTTPServer.ServeHTTP in internal/wasm/httpserver.go reads the plain
  mappingPath2Cache map…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-362
vendor: envoyproxy
product: gateway
affected:
  - gateway < 1.7.4
  - 'gateway >= 1.8.0-rc.0, < 1.8.1'
patched:
  - github.com/envoyproxy/gateway 1.8.1
  - github.com/envoyproxy/gateway 1.7.4
published: '2026-09-14'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T14:10:13.927'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53715'
references:
  - url: >-
      https://github.com/envoyproxy/gateway/commit/5a78db82b7cf4fc5bebbeda2c50952892038a464
    label: security-advisories@github.com
  - url: >-
      https://github.com/envoyproxy/gateway/commit/96e2b750868a459ace4b8b68e6a6e4fb0152b9b7
    label: security-advisories@github.com
  - url: >-
      https://github.com/envoyproxy/gateway/commit/b4737180c7e597490c6363075c565fa8cf24eead
    label: security-advisories@github.com
  - url: 'https://github.com/envoyproxy/gateway/pull/9171'
    label: security-advisories@github.com
  - url: 'https://github.com/envoyproxy/gateway/pull/9172'
    label: security-advisories@github.com
  - url: 'https://github.com/envoyproxy/gateway/pull/9173'
    label: security-advisories@github.com
  - url: 'https://github.com/envoyproxy/gateway/releases/tag/v1.7.4'
    label: security-advisories@github.com
  - url: 'https://github.com/envoyproxy/gateway/releases/tag/v1.8.1'
    label: security-advisories@github.com
  - url: >-
      https://github.com/envoyproxy/gateway/security/advisories/GHSA-8fv2-88gg-hm7q
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-8fv2-88gg-hm7q'
  - url: 'https://github.com/envoyproxy/gateway'
tags:
  - nvd
  - cve.org
  - ghsa
  - go
  - osv
epss: 0.00467
epssPercentile: 0.37824
aliases:
  - GHSA-8fv2-88gg-hm7q
  - BIT-envoy-gateway-2026-53715
  - GO-2026-6005
ecosystem: go
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-15T14:26:08.978177Z'
ingestedAt: '2026-07-16T19:57:16.699Z'
---

## Overview

Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.7.4 and 1.8.1, HTTPServer.ServeHTTP in internal/wasm/httpserver.go reads the plain mappingPath2Cache map without synchronization while HTTPServer.Get writes the same map during EnvoyExtensionPolicy translation. An attacker with pod-network access to unauthenticated port 18002 and tenant permission to churn policies with distinct Wasm URLs can flood GET requests until a per-request reader overlaps a writer. Go's concurrent map read and write detection invokes runtime.throw, which the net/http connection recovery cannot catch, terminating the controller process and causing a timing-dependent, cross-tenant control-plane denial of service until Kubernetes restarts the pod. This issue is fixed in versions 1.7.4 and 1.8.1.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-53715)

Affected packages:

- `github.com/envoyproxy/gateway >= 1.8.0-rc.0, < 1.8.1`
- `github.com/envoyproxy/gateway < 1.7.4`

Patched in:

- `github.com/envoyproxy/gateway 1.8.1`
- `github.com/envoyproxy/gateway 1.7.4`

Source: https://github.com/advisories/GHSA-8fv2-88gg-hm7q