CVE-2026-41413: Istio Vulnerable to SSRF via RequestAuthentication jwksUri

Q: What is the severity of CVE-2026-41413?

CVE-2026-41413 is considered a high-severity vulnerability due to the potential for Server-Side Request Forgery (SSRF).

Q: How do I fix CVE-2026-41413?

To fix CVE-2026-41413, upgrade Istio istiod to version 1.28.6 or 1.29.2 or later versions.

Q: What does CVE-2026-41413 affect?

CVE-2026-41413 affects Istio istiod versions prior to 1.28.6 and 1.29.2 when a RequestAuthentication resource is misconfigured.

Q: What is the nature of the vulnerability in CVE-2026-41413?

The nature of CVE-2026-41413 is that it allows SSRF through a misconfiguration of the jwksUri in RequestAuthentication.

Q: Who is impacted by CVE-2026-41413?

Organizations using vulnerable versions of Istio istiod in their microservices infrastructure are impacted by CVE-2026-41413.

Published May 7, 2026

Updated

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.

Affected Software

3 affected components

Istio istiod<1.28.6, >=1.29.0<1.29.2

Istio Istio<1.28.6

Istio Istio>=1.29.0<1.29.2

Event History

May 7, 2026

CVE Published

via MITRE·04:18 AM

Data Sourced

via MITRE·04:18 AM

DescriptionSeverityWeakness

Data Sourced

via NVD·06:16 AM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2026-41413?

CVE-2026-41413 is considered a high-severity vulnerability due to the potential for Server-Side Request Forgery (SSRF).

How do I fix CVE-2026-41413?

To fix CVE-2026-41413, upgrade Istio istiod to version 1.28.6 or 1.29.2 or later versions.

What does CVE-2026-41413 affect?

CVE-2026-41413 affects Istio istiod versions prior to 1.28.6 and 1.29.2 when a RequestAuthentication resource is misconfigured.

What is the nature of the vulnerability in CVE-2026-41413?

The nature of CVE-2026-41413 is that it allows SSRF through a misconfiguration of the jwksUri in RequestAuthentication.

Who is impacted by CVE-2026-41413?

Organizations using vulnerable versions of Istio istiod in their microservices infrastructure are impacted by CVE-2026-41413.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.