Jenkins Subversion Plugin 2.15.0 and earlier does not restrict the name of a file when looking up a subversion key file on the controller from an agent.
{ "versions": [ { "introduced": "0" }, { "last_affected": "2.15.0" } ] }
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-21698.json"