CVE-2020-9491: Inadequate Encryption Strength

October 1, 2020 (updated July 21, 2021)

In Apache NiFi, the NiFi UI and API were protected by mandating TLS v1.2, as well as listening connections established by processors like ListenHTTP, HandleHttpRequest, etc. However, intracluster communication such as cluster request replication, Site-to-Site, and load balanced queues continued to support TLS v1.0 or v1.1.

References

nifi.apache.org/security
nvd.nist.gov/vuln/detail/CVE-2020-9491

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