PyPI: pillow

CVE-2023-44271

Safety vulnerability ID: SFTY-20231103-51767

Safety legacy ID: pyup.io-62156

Pillow 10.0.0 includes a fix for CVE-2023-44271: Denial of Service that uncontrollably allocates memory to process a given task, potentially causing a service to crash by having it run out of memory. This occurs for truetype in ImageFont when textlength in an ImageDraw instance operates on a long text argument. https://github.com/python-pillow/Pillow/pull/7244

Created at: Apr 22, 2026Updated at: Apr 22, 2026

Overview

Pillow Denial of Service vulnerability

Advisory

Pillow 10.0.0 includes a fix for CVE-2023-44271: Denial of Service that uncontrollably allocates memory to process a given task, potentially causing a service to crash by having it run out of memory. This occurs for truetype in ImageFont when textlength in an ImageDraw instance operates on a long text argument. https://github.com/python-pillow/Pillow/pull/7244

Affected Package

Affecting pillow package, versions
<10.0.0

Also affects

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How to Fix

Upgrade
pillow
to
10.0.0
or higher.

Mitigation and Workarounds

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Vulnerable Functions

Functions linked to known vulnerabilities.

Vulnerable function data is available for Enterprise customers

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Safety

Verified by Safety

Our Cybersecurity Intelligence Team reviewed this vulnerability. We combine public data with our own research to find issues not yet reported to public sources.

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