Access Restriction Bypass Affecting package, versions >=1.9.0 <1.9.5 <1.8.6

  • Attack Complexity


  • Scope


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  • snyk-id


  • published

    3 Jun 2021

  • disclosed

    3 Jun 2021

  • credit

    John Howard of Google

How to fix?

Upgrade to version 1.9.5, 1.8.6 or higher.


Affected versions of this package are vulnerable to Access Restriction Bypass. When a gateway is using the AUTO_PASSTHROUGH routing configuration, attackers can bypass authorization checks and access unexpected services in the cluster.

This vulnerability only impacts usage of the AUTO_PASSTHROUGH Gateway type, which is typically only used in multi-network multi-cluster deployments. See the Istio advisory for more information on triaging the impact of this vulnerability.