PT-2026-117655 · Python Pillow · Pillow

CVE-2026-112397

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Published

2026-10-19

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Updated

2026-10-19

CVSS v4.0

8.7

High

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Pillow is a Python imaging library. Prior to 13.0.0, Pillow's ImageMorph.MorphOp.apply() can access memory before a row buffer for a zero-width image. PPM and PGM input can create an image with width zero, and the native morphology routine indexes outrow[width - 1] without rejecting that geometry. An attacker can supply such an image to an application that applies a morphology operation. This can crash the process. This issue is fixed in version 13.0.0.

Exploit

Fix

Memory Corruption

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Weakness Enumeration

Related Identifiers

CVE-2026-112397

Affected Products

Pillow