========================================================================== Ubuntu Security Notice USN-8352-1 June 01, 2026
libreoffice vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 Summary: LibreOffice could be made to crash or run programs as your login if it opened a specially crafted file. Software Description: - libreoffice: Office productivity suite Details: Duc Anh Nguyen discovered that LibreOffice incorrectly handled mismatched encryption salt parameters in crafted OOXML documents. An attacker could use this issue to cause LibreOffice 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 libreoffice 4:26.2.3.2-0ubuntu0.26.04.1 Ubuntu 25.10 libreoffice 4:25.8.7-0ubuntu0.25.10.1 This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8352-1 CVE-2026-4430 Package Information: https://launchpad.net/ubuntu/+source/libreoffice/4:26.2.3.2-0ubuntu0.26.04.1 https://launchpad.net/ubuntu/+source/libreoffice/4:25.8.7-0ubuntu0.25.10.1
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