CVE-2026-24470: Zalando Skipper

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Skipper is an HTTP router and reverse proxy for service composition. Prior to version 0.24.0, when running Skipper as an Ingress controller, users with permissions to create an Ingress and a Service of type ExternalName can create routes that enable them to use Skipper's network access to reach internal services. Version 0.24.0 disables Kubernetes ExternalName by default. As a workaround, developers can allow list targets of an ExternalName and allow list via regular expressions.

Affected products

• Zalando Skipper: before 0.24.0 (fixed in 0.24.0)

Published 2026-01-26. Last modified 2026-06-17.