cvedb.io
CVE-2021-31921
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2021-06-02T16:15:08.927 · Last modified 2026-06-17T03:52:29.790

Summary

Istio before 1.8.6 and 1.9.x before 1.9.5 contains a remotely exploitable vulnerability where an external client can access unexpected services in the cluster, bypassing authorization checks, when a gateway is configured with AUTO_PASSTHROUGH routing configuration.

Affected products

istio — istio

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.