An issue was discovered in TCPDF before 6.8.0. setSVGStyles does not sanitize the SVG font-family attribute. (CVE-2024-56519) An issue was discovered in TCPDF before 6.8.0. If libcurl is used, CURLOPTSSLVERIFYHOST and CURLOPTSSLVERIFYPEER are set unsafely. (CVE-2024-56521) An issue was discovered in TCPDF before 6.8.0. unserializeTCPDFtag uses != (aka loose comparison) and does not use a constant-time function to compare TCPDF tag hashes. (CVE-2024-56522) An issue was discovered in TCPDF before 6.8.0. The Error function lacks an htmlspecialchars call for the error message. (CVE-2024-56527)