CVE-2025-24030: Envoy Admin Interface Exposed through prometheus metrics endpoint

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-01-23 · updated 2026-06-17
Weakness: CWE-419

Description

Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. A user with access to the Kubernetes cluster can use a path traversal attack to execute Envoy Admin interface commands on proxies managed by any version of Envoy Gateway prior to 1.2.6. The admin interface can be used to terminate the Envoy process and extract the Envoy configuration (possibly containing confidential data). Version 1.2.6 fixes the issue. As a workaround, the `EnvoyProxy` API can be used to apply a bootstrap config patch that restricts access strictly to the prometheus stats endpoint. Find below an example of such a bootstrap patch.

Affected products

envoyproxy gateway: before 1.2.6 — fixed in 1.2.6

How to fix

Upgrade to a fixed version: envoyproxy gateway 1.2.6. Check the vendor advisory for mitigations.

References

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