Apache Solr less than or equal 8.8.1 SSRF

Rejah Rehim
Published on
10 Jan 2022


Solr is an open-source enterprise search platform, it’s written in Java.

Apache Solr is vulnerable to SSRF until version 8.8.1. Because authentication was disabled by default when Apache Solr was installed, unauthenticated attackers could use the Config API to enable requestDis patcher.requestParsers.enableRemoteStreaming, allowing them to access files.


  • Enable Authentication on All Services

  • Update Apache Solr to the latest version

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Written by
Rejah Rehim
Rejah Rehim
Co-founder, Director
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