CVE-2026-41413 MEDIUM

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

Vendor Istio
Product istio
Weakness CWE-918 · SSRF
Published May 7, 2026
Last update May 7, 2026
View on NVD All CVEs

CVSS base score

5.0/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 7, 2026 CVE published
May 7, 2026 Record updated