The Affinity by Canva application before 3.3.0 (September 2026 release) did not perform adequate bounds checking when parsing Affinity docu…

The Affinity by Canva application before 3.3.0 (September 2026 release) did not perform adequate bounds checking when parsing Affinity document files leading to a stack-based buffer overflow. A threat actor could craft a Affinity document that when opened by a user in Affinity could result in arbitrary code execution.