What is CVE-2026-22771?

CVE-2026-22771 is a high-severity vulnerability in Envoyproxy Gateway, classified under Code Injection. CVSS score: 8.8/10. Published 2026-01-12.

How severe is CVE-2026-22771?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Envoyproxy Gateway

CVE-2026-22771

Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.5.7 and 1.6.2, EnvoyExtensionPolicy Lua scripts executed by Envoy proxy can be used to leak the proxy's cr…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.000 (0.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Envoyproxy Gateway — versions < 1.5.7, >= 1.6.0-rc.0, < 1.6.2

Weakness classification (CWE)

CWE-94 — Code Injection

References

https://github.com/envoyproxy/gateway/security/advisories/GHSA-xrwg-mqj6-6m22 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-22771?: CVE-2026-22771 is a high-severity vulnerability in Envoyproxy Gateway, classified under Code Injection. CVSS score: 8.8/10. Published 2026-01-12.
How severe is CVE-2026-22771?: High severity. CVSS v3 base score is 8.8 out of 10.