Verapdf Verapdf-validation vulnerabilities

• verapdf verapdf-validation veraPDF-validatio: Use of Default `DocumentBuilderFactory` leads to XXE When Processing Untrusted PDFs CVE-2026-54082 Fix available 6.5 MediumJuly 29, 2026
• verapdf verapdf-validation veraPDF Validation XXE via Rich Text CVE-2026-54078 Fix available 8.7 HighJuly 29, 2026
• verapdf verapdf-validation veraPDF Validation XXE via XFA CVE-2026-54079 Fix available 8.7 HighJuly 29, 2026