CVE-2026-42311

High

Open

TLP:CLEAR

Pillow: OOB Write with Invalid PSD Tile Extents (Integer Overflow)

NVD CVE.org

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Description

Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution. This issue has been patched in version 12.2.0.

Details

CVSS Score: 8.6
EPSS Score ⓘ: 0.15%

4.7th percentile
CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Confidence: 90%
Published: May 9, 2026
Last Modified: May 9, 2026

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