CVE-2026-41413

MEDIUM

5.0

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.

CVE Details

CVSS v3.1 Score5.0

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published5/7/2026

Last Modified5/8/2026

Sourcenvd

Honeypot Sightings0

Affected Products

istio:istio

Weaknesses (CWE)

CWE-918

References

https://github.com/istio/istio/releases/tag/1.28.6(security-advisories@github.com)

https://github.com/istio/istio/releases/tag/1.29.2(security-advisories@github.com)

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

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.