========================================================================== Ubuntu Security Notice USN-8397-1 June 08, 2026
jpeg-xl vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 Summary: libjxl could be made to crash or run programs if it opened a specially crafted file. Software Description: - jpeg-xl: Reference codec implementation for JPEG XL compressed raster image format Details: It was discovered that libjxl did not properly handle certain crafted PBM images. An attacker could possibly use this issue to cause libjxl to crash, resulting in a denial of service, or execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS libjxl-tools 0.11.1-6ubuntu4.2 libjxl0.11 0.11.1-6ubuntu4.2 Ubuntu 25.10 libjxl-tools 0.11.1-6ubuntu1.2 libjxl0.11 0.11.1-6ubuntu1.2 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8397-1 CVE-2025-70103 Package Information: https://launchpad.net/ubuntu/+source/jpeg-xl/0.11.1-6ubuntu4.2 https://launchpad.net/ubuntu/+source/jpeg-xl/0.11.1-6ubuntu1.2
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