CVE-2026-42308

MEDIUM

Pillow: Integer overflow when processing fonts

Title source: cna
STIX 2.1

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.

References (2)

Core 2
Core References

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 3.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-190
Status published
Products (3)
pypi/pillow 0 - 12.2.0PyPI
python/pillow < 12.2.0
python-pillow/Pillow < 12.2.0
Published May 09, 2026
Tracked Since May 09, 2026