CVE-2026-59205

Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. This issue is fixed in version 12.3.0.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/python-pillow/Pillow/commit/a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721	Patch
https://github.com/python-pillow/Pillow/pull/9715	Issue Tracking Patch
https://github.com/python-pillow/Pillow/releases/tag/12.3.0	Release Notes
https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6	Exploit Vendor Advisory
https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-14 16:17

Updated : 2026-07-14 20:09

NVD link : CVE-2026-59205

Mitre link : CVE-2026-59205

CVE.ORG link : CVE-2026-59205

JSON object : View

Products Affected

python

pillow

CWE

CWE-787

Out-of-bounds Write

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