CVE-2026-41413
Last modified
CVE-2026-41413 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. 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. EPSS estimates a 0.33% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Istio | Istio | < 1.28.6 |
| Istio | Istio | >= 1.29.0, < 1.29.2 |
References
- https://github.com/istio/istio/releases/tag/1.28.6Release Notes
- https://github.com/istio/istio/releases/tag/1.29.2Release Notes
- https://github.com/istio/istio/security/advisories/GHSA-fgw5-hp8f-xfhcMitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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