Authentication Bypass Affecting org.apache.zookeeper:zookeeper package, versions [,3.4.10) [3.5.0-alpha, 3.5.4-beta)

  • Attack Complexity


  • Integrity


Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • snyk-id


  • published

    22 May 2018

  • disclosed

    21 May 2018

  • credit

    Foldi Tamas, Eugene Koontz

How to fix?

Upgrade org.apache.zookeeper:zookeeper to version 3.4.10, 3.5.4-beta or higher.


org.apache.zookeeper:zookeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

Affected versions of this package are vulnerable to Authentication Bypass. No authentication/authorization is enforced when a server attempts to join a quorum, as a result an arbitrary end point could join the cluster and begin propagating counterfeit changes to the leader.