Security Advisory

CVE-2026-59200

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-14 16:09:05

Last updated 2026-07-14 19:52:06

Assigner GitHub_M

CVSS score 7.5

State PUBLISHED

Description

Pillow is a Python imaging library. From 5.1.0 until 12.3.0, PdfParser.PdfStream.decode() in PIL/PdfParser.py calls zlib.decompress() with bufsize set to the PDF stream Length field without bounding the decompressed output size, allowing a crafted FlateDecode PDF stream to exhaust memory from a small file. This issue is fixed in version 12.3.0.

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