CVE-2026-59189: Openexr Channel Row Oob Base Offsetcve-2026-59189-openexr-channel-row-oob-base-offset
Calculating row pointers from `_base` in OpenEXR channel classes leads to out-of-bounds pointer calculations when the data window origin is non-zero. Use the direct buffer pointer (`_pixels`, `_sampleListPointers`, or `_numSamples`) instead.