Kubernetes
CVE-2026-22771
HIGH
GHSA-xrwg-mqj6-6m22
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (github).
CVSS VectorVendor: github
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
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 credentials. These credentials can then be used to communicate with the control plane and gain access to all secrets that are used by Envoy proxy, e.g. TLS private keys and credentials used for downstream and upstream communication. This vulnerability is fixed in 1.5.7 and 1.6.2.
AnalysisAI
Credential theft via Lua script execution in Envoy Gateway versions before 1.5.7 and 1.6.2 allows authenticated attackers to extract proxy credentials and subsequently access the control plane and all associated secrets including TLS private keys. Public exploit code exists for this vulnerability. Affected organizations running vulnerable Envoy Gateway instances should immediately upgrade as no patch is currently available for intermediate versions.
Technical ContextAI
Classified as CWE-94 (Code Injection). Affects Gateway. 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 credentials. These credentials can then be used to communicate with the control plane and gain access to all secrets that are used by Envoy proxy, e.g. TLS private keys and credentials used for downstream and upstream communication. This vulnerability is fixed in
RemediationAI
Fixed in version 1.5.7. Restrict network access to the affected service where possible.
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Same weakness CWE-94 – Code Injection
View allSame technique Code Injection
View allVendor StatusVendor
SUSE
Severity: HighShare
External POC / Exploit Code
Leaving vuln.today