Ubuntu Security Notices USN-8097-2 USN-8097-2: roundcube regression Publication date 18 March 2026 Overview USN-8097-1 introduced a regression in roundcube Releases 20.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Packages roundcube - skinnable AJAX based webmail solution for IMAP servers - metapack Details USN-8097-1 fixed a vulnerability in roundcube. The update caused a regression affecting the HTML sanitizer, preventing Roundcube from rendering any email message body. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that Roundcube Webmail did not properly sanitize the animate tag within SVG documents. An attacker could possibly use this issue to cause a cross-site scripting attack. USN-8097-1 fixed a vulnerability in roundcube. The update caused a regression affecting the HTML sanitizer, preventing Roundcube from rendering any email message body. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that Roundcube Webmail did not properly sanitize the animate tag within SVG documents. An attacker could possibly use this issue to cause a cross-site scripting attack. 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 20.04 LTS focal roundcube-core – 1.4.3+dfsg.1-1ubuntu0.1~esm7 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. roundcube-plugins – 1.4.3+dfsg.1-1ubuntu0.1~esm7 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. 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. Get Ubuntu Pro References https://launchpad.net/bugs/2144682