CVE-2026-59200
HIGH SEVERITYCVSS Score & Metrics
Base Score
7.5 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability 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.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-400
Source
NVD
Vendor
python-pillow
Product
Pillow
External References
- https://github.com/python-pillow/Pillow/commit/f7a31ea75e460e108c37126da1f47812f21f6b09
- https://github.com/python-pillow/Pillow/pull/9718
- https://github.com/python-pillow/Pillow/releases/tag/12.3.0
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-jjj6-mw9f-p565
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-jjj6-mw9f-p565
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