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Vulnerability record · CVE-2026-24470 · published 26 January 2026

CVE-2026-24470: Zalando skipper server-side request forgery (ssrf) vulnerability

Zalando · 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.

8.1 CVSS 3.1 High EPSS 0.31% · top 79.0% CWE-441 · CWE-441CWE-918 · Server-side request forgery (SSRF)
8.1CVSS 3.1 base score
0.31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/zalando/skipper/commit/a4c87ce029a58eb8e1c2c1f93049194a39cf6219 Patch
https://github.com/zalando/skipper/security/advisories/GHSA-mxxc-p822-2hx9 MitigationVendor Advisory
https://kubernetes.io/docs/concepts/services-networking/service/#externalname Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-38580Zalando skipper server-side request forgery (ssrf) vulnerabilityZalando Skipper v0.13.236 is vulnerable to Server-Side Request Forgery (SSRF).EPSS 11%8.8CVE-2026-23742Zalando skipper code injection vulnerabilitySkipper is an HTTP router and reverse proxy for service composition. The default skipper configuration before 0.23.0 was -lua-sources=inline,file. Th…EPSS 0.52%7.5CVE-2022-34296Zalando skipper vulnerabilityIn Zalando Skipper before 0.13.218, a query predicate could be bypassed via a prepared request.EPSS 1.2%10.0CVE-2026-83548SonicWall SMA1000 pre-auth SSRF via alternate access pathThe SMA1000 Appliance Work Place interface exposes an unintended alternate access path that allows server-side request forgery before authentication.…KEVEPSS 8.8%analysed

Source: NIST National Vulnerability Database (record CVE-2026-24470), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.