CVE-2026-112892

Pillow is a Python imaging library. From 4.1.0 until 13.0.0, Pillow's MSP RLE decoder can expand a small file into an unbounded in-memory buffer. The decoder writes run-length output to BytesIO without limiting expansion to the declared image size. An attacker can supply a crafted MSP image to an application that loads its pixels. This can exhaust memory and deny service even when the declared pixel count passes the decompression-bomb check. This issue is fixed in version 13.0.0.

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/5dcb630b9798efd91929cb873d677aeee6ed0bb3	Patch
https://github.com/python-pillow/Pillow/releases/tag/13.0.0	Release Notes
https://github.com/python-pillow/Pillow/security/advisories/GHSA-gg2r-wvfm-q9rx	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

27 Oct 2026, 14:59

Type	Values Removed	Values Added
CPE		cpe:2.3:a:python:pillow::::::::
References	~~() https://github.com/python-pillow/Pillow/commit/5dcb630b9798efd91929cb873d677aeee6ed0bb3 -~~	() https://github.com/python-pillow/Pillow/commit/5dcb630b9798efd91929cb873d677aeee6ed0bb3 - Patch
References	~~() https://github.com/python-pillow/Pillow/releases/tag/13.0.0 -~~	() https://github.com/python-pillow/Pillow/releases/tag/13.0.0 - Release Notes
References	~~() https://github.com/python-pillow/Pillow/security/advisories/GHSA-gg2r-wvfm-q9rx -~~	() https://github.com/python-pillow/Pillow/security/advisories/GHSA-gg2r-wvfm-q9rx - Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
First Time		Python Python pillow

19 Oct 2026, 22:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-19 22:17

Updated : 2026-10-27 14:59

NVD link : CVE-2026-112892

Mitre link : CVE-2026-112892

CVE.ORG link : CVE-2026-112892

JSON object : View

Products Affected

python

pillow

CWE

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

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