CVE-2026-59199

HIGH 7.5EPSS 0.4%

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.

CVSS v3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.39% chance of exploitation in the next 30 days, 32th percentile
Published: 2026-07-14
Updated: 2026-07-15

Proof-of-concept exploits (1)

advisories/GHSA-6r8x-57c9-28j4

References

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