Kubernetes
CVE-2026-24470
HIGH
GHSA-mxxc-p822-2hx9
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
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.
AnalysisAI
Skipper versions up to 0.24.0 contains a vulnerability that allows attackers to list targets of an ExternalName and allow list via regular expressions (CVSS 8.1).
Technical ContextAI
affects Skipper. 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.
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
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Vendor StatusVendor
SUSE
Severity: HighShare
External POC / Exploit Code
Leaving vuln.today