CVE-2026-78475 Gimp: unbounded stack vla and 21-byte stack over-read in pix (esm) loader

A flaw was found in the file-pix ESM plugin in GIMP. When processing a specially crafted PIX image file, the plugin allocates a Variable-Length Array VLA on the stack without proper bounds checking, causing an unbounded stack allocation followed by a 21-byte stack over-read. This can result in a...