iTextPDF in iText before 7.1.17 allows command injection via a CompareTool filename that is mishandled on the gs (aka Ghostscript) command line in GhostscriptHelper.java.
{ "github_reviewed_at": "2022-01-25T21:02:25Z", "nvd_published_at": "2021-12-15T07:15:00Z", "cwe_ids": [ "CWE-77" ], "github_reviewed": true, "severity": "CRITICAL" }