Peppol-py before 1.1.1 allows XXE attacks because of the Saxon configuration. When validating XML-based invoices, the XML parser could read files from the filesystem and expose their content to a remote host.
{ "versions": [ { "introduced": "0" }, { "fixed": "1.1.1" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66371.json"