Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions. This issue is patched in 8.6.3.
{
"github_reviewed": true,
"cwe_ids": [
"CWE-863"
],
"github_reviewed_at": "2021-04-14T17:55:51Z",
"nvd_published_at": "2020-10-13T19:15:00Z",
"severity": "CRITICAL"
}