Pillow is a Python imaging library. Prior to version 12.2.0, if a font advances for each glyph by an exceeding large amount, when Pillow keeps track of the current position, it may lead to an integer overflow. This issue has been patched in version 12.2.0.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-wjx4-4jcj-g98j Pillow has an integer overflow when processing fonts
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 12 May 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Python
Python pillow
CPEs cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*
Vendors & Products Python
Python pillow
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Mon, 11 May 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 09 May 2026 06:45:00 +0000

Type Values Removed Values Added
First Time appeared Python-pillow
Python-pillow pillow
Vendors & Products Python-pillow
Python-pillow pillow

Sat, 09 May 2026 05:30:00 +0000

Type Values Removed Values Added
Description Pillow is a Python imaging library. Prior to version 12.2.0, if a font advances for each glyph by an exceeding large amount, when Pillow keeps track of the current position, it may lead to an integer overflow. This issue has been patched in version 12.2.0.
Title Pillow: Integer overflow when processing fonts
Weaknesses CWE-190
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-11T15:03:00.916Z

Reserved: 2026-04-26T12:37:18.169Z

Link: CVE-2026-42308

cve-icon Vulnrichment

Updated: 2026-05-11T15:02:57.971Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-09T06:16:09.793

Modified: 2026-05-12T17:57:20.027

Link: CVE-2026-42308

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-09T06:30:25Z

Weaknesses