CVE-2026-59200

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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Produits concernés

• python-pillow Pillow
• Python pillow

Scores CVSS

Faiblesses (CWE)

• CWE-400
• CWE-770

Références

• https://github.com/python-pillow/Pillow/commit/f7a31ea75e460e108c37126da1f47812f21f6b09 Patch
• https://github.com/python-pillow/Pillow/pull/9718 Issue TrackingPatch
• https://github.com/python-pillow/Pillow/releases/tag/12.3.0 Release Notes
• https://github.com/python-pillow/Pillow/security/advisories/GHSA-jjj6-mw9f-p565 ExploitVendor Advisory
• https://github.com/python-pillow/Pillow/security/advisories/GHSA-jjj6-mw9f-p565 ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories