Server-side Request Forgery (SSRF) Affecting istio.io/istio/pilot/pkg/xds package, versions <1.28.6>=1.29.0-alpha.0 <1.29.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-ISTIOIOISTIOPILOTPKGXDS-16110478
- published21 Apr 2026
- disclosed16 Apr 2026
- creditKoreaSecurity, 1seal, AKiileX
Introduced: 16 Apr 2026
CVE-2026-41413 Â (opens in a new tab)How to fix?
Upgrade istio.io/istio/pilot/pkg/xds to version 1.28.6, 1.29.2 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the jwksUri field of the RequestAuthentication resource. An attacker can access internal network resources by specifying a URL pointing to an internal service, causing the system to make unauthenticated HTTP GET requests and potentially distribute sensitive data to proxies.
Workaround
This vulnerability can be mitigated by deploying a ValidatingAdmissionPolicy to block creation of resources with suspicious jwksUri values (such as localhost, 127.0.0.0/8, 169.254.0.0/16, and their IPv6 equivalents).