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CVE-2026-59199

HIGH CVSS: 7.5 Published: 2026-07-14 Modified: 2026-07-15

Description

Pillow is a Python imaging library. Prior to 12.3.0, Pillow public image coordinate APIs can trigger a native heap out-of-bounds write when given coordinates near the signed 32-bit integer limits in Image.paste(), Image.crop(), or Image.alpha_composite(). This issue is fixed in version 12.3.0.

Affected Platforms

Python Pillow

Weakness Type

CWE-190, CWE-787, CWE-787

References