CVE-2026-42450: Academysoftwarefoundation Opencolorio

High severity, CVSS 8.4. EPSS: 0.2% chance of exploitation in the next 30 days.

OpenColorIO is a color management framework for visual effects and animation. Prior to version 2.5.2, `FileFormatSpi3D.cpp:163` uses `sscanf` with `%s` into 64-byte stack buffers when parsing LUT data lines. Input comes from `lineBuffer[4096]`, so a crafted .spi3d file can overflow by ~4000 bytes on non-Windows. Version 2.5.2 fixes the issue.

Affected products

• Academysoftwarefoundation Opencolorio: before 2.5.2 (fixed in 2.5.2)

Published 2026-06-24. Last modified 2026-06-25.