Security Advisory

CVE-2026-55380

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-06 18:50:14

Last updated 2026-07-06 19:23:30

Assigner GitHub_M

CVSS score 7.5

State PUBLISHED

Description

Pillow is a Python imaging library. Prior to 12.3.0, PIL/GdImageFile.py GdImageFile._open() read image dimensions from the GD 2.x header and stored them in self._size without calling Image._decompression_bomb_check(), allowing a crafted .gd file to trigger excessive C-heap allocation when loaded. This issue is fixed in version 12.3.0.

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