Vulnerability Description
Istio is an open platform to connect, manage, and secure microservices. Prior to versions 1.28.6 and 1.29.2, when a RequestAuthentication resource is created with a jwksUri pointing to an internal service, istiod makes an unauthenticated HTTP GET request to that URL without filtering out localhost or link local ips. This can result in sensitive data being distributed to Envoy proxies via xDS configuration. This issue has been patched in versions 1.28.6 and 1.29.2.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Istio | Istio | < 1.28.6 |
Related Weaknesses (CWE)
References
- https://github.com/istio/istio/releases/tag/1.28.6Release Notes
- https://github.com/istio/istio/releases/tag/1.29.2Release Notes
- https://github.com/istio/istio/security/advisories/GHSA-fgw5-hp8f-xfhcMitigationVendor Advisory
FAQ
What is CVE-2026-41413?
CVE-2026-41413 is a vulnerability with a CVSS score of 5.0 (MEDIUM). Istio is an open platform to connect, manage, and secure microservices. Prior to versions 1.28.6 and 1.29.2, when a RequestAuthentication resource is created with a jwksUri pointing to an internal ser...
How severe is CVE-2026-41413?
CVE-2026-41413 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41413?
Check the references section above for vendor advisories and patch information. Affected products include: Istio Istio.