CVE-2026-112397

UNKNOWN 0.0

Pillow: Out-of-bounds access in _imagingmorph on a zero-width image

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-787
Vendor	python-pillow
Product	pillow
Published	Oct 19, 2026
Last Updated	Oct 19, 2026

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Affected Versions

python-pillow / Pillow

< 13.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/python-pillow/Pillow/security/advisories/GHSA-58r4-6rv3-gfh8 github.com: https://github.com/python-pillow/Pillow/commit/18f7c0dfee93063c51db6ed0ca8c4da2999dcb64 github.com: https://github.com/python-pillow/Pillow/releases/tag/13.0.0