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

Quick assessment

Affected
istio istio
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Istio是Istio开源的一套连接、管理和保护微服务的开放平台。 Istio 1.28.6之前版本和1.29.2之前版本存在代码问题漏洞，该漏洞源于当创建指向内部服务的jwksUri的RequestAuthentication资源时，istiod未过滤本地主机或链路本地IP，可能导致敏感数据通过xDS配置分发到Envoy代理。

CVSS 5.0 · Medium EPSS 0.33% · P26

Affected Version Matrix 2

VendorProduct Version RangeStatus
istio istio < 1.28.6 affected
>= 1.29.0-alpha.0, < 1.29.2 affected
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I. Basic Information for CVE-2026-41413

Vulnerability Information
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Vulnerability Title
Istio Vulnerable to SSRF via RequestAuthentication jwksUri
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Istio 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Istio是Istio开源的一套连接、管理和保护微服务的开放平台。 Istio 1.28.6之前版本和1.29.2之前版本存在代码问题漏洞，该漏洞源于当创建指向内部服务的jwksUri的RequestAuthentication资源时，istiod未过滤本地主机或链路本地IP，可能导致敏感数据通过xDS配置分发到Envoy代理。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
istio istio < 1.28.6 -

II. Public POCs for CVE-2026-41413

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III. Intelligence Information for CVE-2026-41413

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Vendor Advisories for CVE-2026-41413 (1)

Vendor Pages for CVE-2026-41413 (1)

IV. Related Vulnerabilities

Same product: istio
Same vendor: istio
Same weakness: CWE-918