CVE-2026-59991 psd-tools: Uncontrolled memory allocation in psd-tools composite/numpy via crafted PSD geometry

psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to 1.17.4, PSDImage.composite and PSDImage.numpy allocated output buffers from attacker-controlled PSD header geometry, including width, height, channels, depth, and per-layer rectangles, before validating those value...