CVE-2026-24470: Skipper Ingress Controller Allows Unauthorized Access to Internal Services via ExternalName
(updated )
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.
References
- github.com/advisories/GHSA-mxxc-p822-2hx9
- github.com/zalando/skipper
- github.com/zalando/skipper/commit/a4c87ce029a58eb8e1c2c1f93049194a39cf6219
- github.com/zalando/skipper/releases/tag/v0.24.0
- github.com/zalando/skipper/security/advisories/GHSA-mxxc-p822-2hx9
- kubernetes.io/docs/concepts/services-networking/service/
- nvd.nist.gov/vuln/detail/CVE-2026-24470
Code Behaviors & Features
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