{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-24470", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-01-23T00:38:20.546Z", "datePublished": "2026-01-26T22:23:43.325Z", "dateUpdated": "2026-01-27T14:51:35.229Z" }, "containers": { "cna": { "title": "Skipper Ingress Controller Allows Unauthorized Access to Internal Services via ExternalName", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-441", "lang": "en", "description": "CWE-441: Unintended Proxy or Intermediary ('Confused Deputy')", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1" } } ], "references": [ { "name": "https://github.com/zalando/skipper/security/advisories/GHSA-mxxc-p822-2hx9", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/zalando/skipper/security/advisories/GHSA-mxxc-p822-2hx9" }, { "name": "https://github.com/zalando/skipper/commit/a4c87ce029a58eb8e1c2c1f93049194a39cf6219", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/zalando/skipper/commit/a4c87ce029a58eb8e1c2c1f93049194a39cf6219" }, { "name": "https://kubernetes.io/docs/concepts/services-networking/service/#externalname", "tags": [ "x_refsource_MISC" ], "url": "https://kubernetes.io/docs/concepts/services-networking/service/#externalname" } ], "affected": [ { "vendor": "zalando", "product": "skipper", "versions": [ { "version": "< 0.24.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-01-26T22:23:43.325Z" }, "descriptions": [ { "lang": "en", "value": "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." } ], "source": { "advisory": "GHSA-mxxc-p822-2hx9", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-27T14:50:06.337869Z", "id": "CVE-2026-24470", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-27T14:51:35.229Z" } } ] } }