PYSEC-2026-1608 MaterialX Lack of MTLX Import Depth Limit Leads to DoS (Denial-Of-Service) Via Stack Exhaustion

Summary Nested imports of MaterialX files can lead to a crash via stack memory exhaustion, due to the lack of a limit on the "import chain" depth. Details The MaterialX specification supports importing other files by using XInclude tags. When parsing file imports, recursion is used to process...