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CVE-2026-112402 Details

Description

Pillow is a Python imaging library. Prior to 13.0.0, Pillow can double free image memory when ImagingScaleAffine encounters a selective allocation failure. The affected fast path handles Transform.EXTENT or pure scale-and-translate Transform.AFFINE operations with the default NEAREST resampling. The output image allocation must succeed while the additional per-column lookup allocation fails, after which the error path deletes image storage that later cleanup releases again. An attacker who can drive such a large Image.transform() operation under memory pressure may trigger the failure. This can crash the process and may corrupt memory. This issue is fixed in version 13.0.0.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/python-pillow/Pillow/security/advisories/GHSA-7mwm-ghpf-9vrm	CISA-ADP	ExploitMitigationPatchVendor Advisory
https://github.com/python-pillow/Pillow/commit/aafa6c75f7cdabb9f409a8aac7c780bea31d08d9	[email protected]	Patch
https://github.com/python-pillow/Pillow/releases/tag/13.0.0	[email protected]	Release Notes
https://github.com/python-pillow/Pillow/security/advisories/GHSA-7mwm-ghpf-9vrm	[email protected]	ExploitMitigationPatchVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
python pillow	< 13.0.0
CPE cpe:2.3:a:python:pillow:::::::: Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Oct 27, 2026	Initial Analysis	[email protected]
Oct 19, 2026	New CVE Received	[email protected]
Oct 19, 2026	CVE Modified	CISA-ADP