CVE-2026-59186 OpenEXR: Heap out-of-bounds write in TiledRgbaInputFile via integer overflow on 32-bit (ILP32) builds

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, a crafted tiled EXR can trigger a heap out-of-bounds write on 32-bit/ILP32 builds when read...

CVE-2026-59186

OpenEXR , the reference implementation for the EXR image format widely used in the motion picture industry, is affected by a heap out-of-bounds write on 32-bit/ILP32 builds. A crafted tiled EXR file with a small 40×40 dataWindow but a 65537×65537 tile size, when read through the TiledRgbaInputFil...