CVE-2026-112896

HighCVSS 7.1/10Last modified Oct 27, 2026

Description

Pillow is a Python imaging library. Prior to 13.0.0, Pillow's TIFF encoder can read beyond a ColorMap buffer when retained TIFF metadata has a plane size inconsistent with BitsPerSample. A small TIFF can be opened normally and then retain a crafted ColorMap that is reused when the image is saved. An application that re-encodes the attacker's TIFF with libtiff can trigger the out-of-bounds read. This can disclose heap memory in the output or crash the process. This issue is fixed in version 13.0.0.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
python-pillow	Pillow	< 13.0.0

References

Timeline

Published: Oct 19, 2026
Last modified: Oct 27, 2026
NVD status: Analyzed

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