CVE-2026-63273 Heap buffer overflow in PDF import encryption handling

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing an encrypted document. The length of the decryption key was taken from the document's own encryption dictionary and was used to fill a fixed size key buffer without being checked against it, so a length large...

EUVD-2026-84353

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing an encrypted document. The length of the decryption key was taken from the document's own encryption dictionary and was used to fill a fixed size key buffer without being checked against it, so a length large...

CVE-2026-63273

LibreOffice Draw is vulnerable to a heap buffer overflow when importing encrypted PDF documents. The root cause lies in the PDF import's encryption handling: the decryption key length was read directly from the document's own encryption dictionary and used to fill a fixed-size key buffer without ...