USN-8690-1: Pillow vulnerability

Publication date

1 September 2026

Overview

Pillow could be made to crash or expose sensitive information if it processed a specially crafted image file.


Packages

  • pillow - Python Imaging Library

Details

It was discovered that Pillow did not properly manage memory when
processing certain image files. An attacker could possibly use this issue
to cause a denial of service or read sensitive data.

It was discovered that Pillow did not properly manage memory when
processing certain image files. An attacker could possibly use this issue
to cause a denial of service or read sensitive data.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
26.04 LTS resolute python3-pil –  12.1.1-2ubuntu1.3
python3-pil.imagetk –  12.1.1-2ubuntu1.3
24.04 LTS noble python3-pil –  10.2.0-1ubuntu1.3
python3-pil.imagetk –  10.2.0-1ubuntu1.3
22.04 LTS jammy python3-pil –  9.0.1-1ubuntu0.5
python3-pil.imagetk –  9.0.1-1ubuntu0.5
20.04 LTS focal python3-pil –  7.0.0-4ubuntu0.9+esm1  
python3-pil.imagetk –  7.0.0-4ubuntu0.9+esm1  

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

Talk to a member of the team ›