==========================================================================
Ubuntu Security Notice USN-8252-1
May 07, 2026

openjpeg2 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

OpenJPEG could be made to crash or run programs when encoding image files.

Software Description:
- openjpeg2: JPEG 2000 image compression/decompression library

Details:

It was discovered that OpenJPEG did not properly handle memory when
encoding image files. An attacker could use this issue to cause OpenJPEG to
crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions:

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

Ubuntu 26.04 LTS
  libopenjp2-7                    2.5.4-1ubuntu0.1

Ubuntu 25.10
  libopenjp2-7                    2.5.3-2.1ubuntu0.1

Ubuntu 24.04 LTS
  libopenjp2-7                    2.5.0-2ubuntu0.5

Ubuntu 22.04 LTS
  libopenjp2-7                    2.4.0-6ubuntu0.5

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

References:
  https://ubuntu.com/security/notices/USN-8252-1
  CVE-2026-6192

Package Information:
  https://launchpad.net/ubuntu/+source/openjpeg2/2.5.4-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/openjpeg2/2.5.3-2.1ubuntu0.1
  https://launchpad.net/ubuntu/+source/openjpeg2/2.5.0-2ubuntu0.5
  https://launchpad.net/ubuntu/+source/openjpeg2/2.4.0-6ubuntu0.5