CVE-2026-54059
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Jul 06, 2026
Vendor
unknown
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.