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.
CVE-2026-24470
This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 86% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.1
- EG Score
- 8.1(medium)
- EPSS
- 18.6%
- KEV
- Not listed
Published
January 26, 2026
Last Modified
February 18, 2026
References (3)
- security-advisories@githubhttps://github.com/zalando/skipper/commit/a4c87ce029a58eb8e1c2c1f93049194a39cf6219
- security-advisories@githubhttps://github.com/zalando/skipper/security/advisories/GHSA-mxxc-p822-2hx9
- security-advisories@githubhttps://kubernetes.io/docs/concepts/services-networking/service/#externalname
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/zalando/skipper | — | 0.24.0 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 49× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-05-29 15:14 UTCEG score recompute
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Related CVEs(same CWE)
Same CWE
10 shownCWE-918
Frequently asked(5)
What is CVE-2026-24470?
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Dependency Blast Radius
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