CVE-2026-27809 psd-tools: Compression module has unguarded zlib decompression, missing dimension validation, and hardening gaps

psd-tools is a Python package for working with Adobe Photoshop PSD files. Prior to version 1.12.2, when a PSD file contains malformed RLE-compressed image data e.g. a literal run that extends past the expected row size, decoderle raises ValueError which propagated all the way to the user, crashin...