CVE-2026-43904 OpenImageIO: Softimage PIC RLE decoder heap buffer overflow — longCount not clamped to image width

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, softimageinput.cpp:469 mixed RLE and :345 pure RLE do not clamp the run length to remaining scanline width before writing pixels. The r...