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CVE-2026-59991

psd-tools: Uncontrolled memory allocation in psd-tools composite/numpy via crafted PSD geometry PUBLISHED

Description (CNA)

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 values against the available file data. A tiny crafted PSD could therefore cause multi-gigabyte memory allocation, and PSDImage.composite() could return a black image with only a warning instead of raising an exception. Services that composite untrusted PSD files could be terminated by out-of-memory handling. This issue is fixed in version 1.17.4.

Affected (CNA)

Vendor / productVersions
psd-tools / psd-toolsaffected < 1.17.4

CWE

CWE-789

References

ADP enrichment

CISA-ADP

No English description supplied.