CVE-2021-27905: Server-Side Request Forgery (SSRF)

April 13, 2021 (updated November 7, 2023)

The ReplicationHandler (normally registered at /replication under a Solr core) in Apache Solr has a masterUrl (also leaderUrl alias) parameter that is used to designate another ReplicationHandler on another Solr core to replicate index data into the local core. To prevent a SSRF vulnerability, Solr ought to check these parameters against a similar configuration it uses for the shards parameter.

References

nvd.nist.gov/vuln/detail/CVE-2021-27905

Code Behaviors & Features

Detect and mitigate CVE-2021-27905 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →