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Ubuntu 25.10 Pillow Severely Affected by DoS Resource Crash Flaw USN-8211-1

ubuntu
Calendar Grey April 27, 2026
Dist Ubuntu Esm H88
Pillow crash risk on Ubuntu 25.10 addresses crucial update for denial of service vulnerability.
Pillow could be made to crash if it opened a specially crafted file.

Summary

Pillow could be made to crash if it opened a specially crafted file.

Software Description:

- pillow: Python Imaging Library

Details:

It was discovered that Pillow incorrectly handled certain FITS images. An

attacker could possibly use this issue to cause Pillow to consume

resources, leading to a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu important resource consumption pillow

Update Instructions

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

Ubuntu 25.10
  python3-pil                     11.3.0-1ubuntu1.2
  python3-pil.imagetk             11.3.0-1ubuntu1.2

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

References

https://ubuntu.com/security/notices/USN-8211-1

CVE-2026-40192

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8211-1

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu important resource consumption pillow

Package Information

https://launchpad.net/ubuntu/+source/pillow/11.3.0-1ubuntu1.2

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