Istio Vulnerable to SSRF via RequestAuthentication jwksUri_CVE-2026-41413

5 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2026-41413

Source GitHub_M

Published May 7, 2026 at 04:18

Affected Product

Vendor istio

Product istio

Version < 1.28.6

Affected Versions istio istio < 1.28.6
istio istio >= 1.29.0-alpha.0, < 1.29.2

CWE Classification

CWE-918

References

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    "published": "2026-05-07T04:18:32.040Z",
    "modified": "2026-05-07T04:18:32.040Z",
    "type": "cve",
    "title": "Istio Vulnerable to SSRF via RequestAuthentication jwksUri",
    "source": "GitHub_M",
    "references": "https://github.com/istio/istio/security/advisories/GHSA-fgw5-hp8f-xfhc\nhttps://github.com/istio/istio/releases/tag/1.28.6\nhttps://github.com/istio/istio/releases/tag/1.29.2",
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