Cassandra Vulnerability – CVE-2020-13946 – Apache Cassandra RMI Rebind Vulnerability

Posted in: Technical Track

On September 1, 2020, Apache disclosed a security vulnerability for Apache Cassandra.


It’s possible for a local attacker without access to the Apache Cassandra process or configuration files, to manipulate the RMI registry to perform a man-in-the-middle attack and capture user names and passwords used to access the JMX interface. The attacker can then use these credentials to access the JMX interface and perform unauthorized operations. Users should also be aware of CVE-2019-2684, a JRE vulnerability that enables this issue to be exploited remotely.

Affected Versions:

  • 2.1.x < 2.1.22
  • 2.2.x < 2.2.18
  • 3.0.x < 3.0.22
  • 3.11.x < 3.11.8
  • 4.0-beta1 < 4.0-beta2


Upgrade your Cassandra deployments to the newly released Cassandra versions:

Latest Beta Version
Latest Stable Version
  • 3.11.8 – released on 2020-08-31.
Older Supported Releases
  • 3.0.22 – released on 2020-08-31.
  • 2.2.18 – released on 2020-08-31.
  • 2.1.22 – released on 2020-08-31.




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About the Author

Eight years of Pedro's work history has included consulting and Developmental Business Unit Management for multinational IT consultancy firms. This provided him with extensive experience in leading development teams as well as designing and developing software. Pedro's MBA in management gave him with the business knowledge required when interacting with the clients from various global multinational companies. He is dedicated to building and designing solutions that solve client requirements regardless of the underlining technology.

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