Skip to content
CVE PROGRAM SOURCE RECORD8.1 High

CVE-2026-24470

Skipper Ingress Controller Allows Unauthorized Access to Internal Services via ExternalName

Description

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

zalando skipper

  • < 0.24.0affected

References