Security Advisory

CVE-2026-54059

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-06 18:46:09

Last updated 2026-07-07 16:57:53

Assigner GitHub_M

CVSS score 7.5

State PUBLISHED

Description

Pillow is a Python imaging library. Prior to 12.3.0, PIL/PcfFontFile.py _load_bitmaps() read glyph dimensions from the PCF METRICS section and passed them directly to Image.frombytes() without calling Image._decompression_bomb_check(), allowing crafted PCF font data to cause excessive memory allocation. This issue is fixed in version 12.3.0.

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