CVE-2026-41413

EUVD-2026-28315

07.05.2026, 06:16

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.

SSRF

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	5 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: 14%

Affected Products (NVD)

Vendor	Product	Version
istio	istio	𝑥 < 1.28.6
istio	istio	1.29.0 ≤ 𝑥 < 1.29.2

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-918 - Server-Side Request Forgery (SSRF)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

References

https://github.com/istio/istio/releases/tag/1.28.6

https://github.com/istio/istio/releases/tag/1.29.2

https://github.com/istio/istio/security/advisories/GHSA-fgw5-hp8f-xfhc