CVE-2021-29943: solr: unprivileged users may be able to perform unauthorized read/write to collections

Severity: Critical

CVSS Score: 9.1

When using ConfigurableInternodeAuthHadoopPlugin for authentication, Apache Solr versions prior to 8.8.2 would forward/proxy distributed requests using server credentials instead of original client credentials. This would result in incorrect authorization resolution on the receiving hosts.