CVE-2026-6210

A flaw was found in Qt SVG. A remote attacker could exploit a vulnerability by providing a specially crafted SVG image. This issue arises from incorrect handling of SVG marker references, where the software misinterprets data types, leading to memory access errors and an infinite loop. This can cause the application to crash, resulting in a denial of service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

To mitigate this issue, avoid processing untrusted SVG images with applications that use Qt SVG. Users should exercise caution when opening SVG files from unknown or suspicious sources. If possible, configure applications to restrict the loading or rendering of SVG content from untrusted origins. This operational control reduces the attack surface by preventing the vulnerable component from processing malicious input.