PDFDoc::markObject in PDFDoc.cc in Poppler 0.74.0 mishandles dict marking, leading to stack consumption in the function Dict::find() located at Dict.cc, which can (for example) be triggered by passing a crafted pdf file to the pdfunite binary.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-9903.json"