---
title: "CVE-2026-53714: Envoy Gateway - Authentication Bypass"
description: "Envoy Gateway < 1.7.4 and < 1.8.1 contains an authentication bypass caused by missing UnaryInterceptor and incomplete JWT validation in xDS gRPC server, letting attackers with network access retrieve sensitive configuration and TLS keys, exploit requires network access to port 18000."
url: https://panop.io/threat-heartbeat/CVE-2026-53714/
---

# CVE-2026-53714 Envoy Gateway - Authentication Bypass

Envoy Gateway < 1.7.4 and < 1.8.1 contains an authentication bypass caused by missing UnaryInterceptor and incomplete JWT validation in xDS gRPC server, letting attackers with network access retrieve sensitive configuration and TLS keys, exploit requires network access to port 18000.

CVSS base score 7.4 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.35% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-53714)

## Details

Type

Authentication Bypass

Impact

Information Disclosure, File System Read

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Published

14 September 2026

Updated

15 October 2026

Weakness

[CWE-306](https://cwe.mitre.org/data/definitions/306.html)

## Vendor fix

Upgrade to versions 1.7.4 and 1.8.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-53714](https://nvd.nist.gov/vuln/detail/CVE-2026-53714)
- [https://github.com/envoyproxy/gateway/releases/tag/v1.7.4](https://github.com/envoyproxy/gateway/releases/tag/v1.7.4)
- [https://github.com/envoyproxy/gateway/releases/tag/v1.8.1](https://github.com/envoyproxy/gateway/releases/tag/v1.8.1)
- [https://github.com/envoyproxy/gateway/commit/e9124abc4ff4b63a218a6890c1b28a982c850465](https://github.com/envoyproxy/gateway/commit/e9124abc4ff4b63a218a6890c1b28a982c850465)
- [https://github.com/envoyproxy/gateway/pull/9116](https://github.com/envoyproxy/gateway/pull/9116)
- [https://github.com/envoyproxy/gateway/security/advisories/GHSA-22xc-xg2r-9j7v](https://github.com/envoyproxy/gateway/security/advisories/GHSA-22xc-xg2r-9j7v)
- [https://github.com/envoyproxy/gateway/commit/4df0809ff1ed59ffb09604da4084335b8c6647c5](https://github.com/envoyproxy/gateway/commit/4df0809ff1ed59ffb09604da4084335b8c6647c5)
- [https://github.com/envoyproxy/gateway/commit/f1f9829af2a231f0cae915c09800353c76622d97](https://github.com/envoyproxy/gateway/commit/f1f9829af2a231f0cae915c09800353c76622d97)
- [https://github.com/envoyproxy/gateway/pull/8986](https://github.com/envoyproxy/gateway/pull/8986)
- [https://github.com/envoyproxy/gateway/pull/9118](https://github.com/envoyproxy/gateway/pull/9118)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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