========================================================================== Ubuntu Security Notice USN-8518-1 July 08, 2026
mailcap 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: mailcap could allow applications to escape sandbox restrictions Software Description: - mailcap: Debian's mailcap system, and support programs Details: Aaron Rainbolt discovered that the cautious-launcher utility in the mailcap package did not properly restrict the execution of certain file types. An attacker could use this issue to escape a sandboxed application and execute arbitrary code on the host operating system. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS mailcap 3.75ubuntu1.1 Ubuntu 25.10 mailcap 3.74ubuntu1.1 Ubuntu 24.04 LTS mailcap 3.70+nmu1ubuntu1.24.04.1 Ubuntu 22.04 LTS mailcap 3.70+nmu1ubuntu1.22.04.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8518-1 CVE-2026-10037 Package Information: https://launchpad.net/ubuntu/+source/mailcap/3.75ubuntu1.1 https://launchpad.net/ubuntu/+source/mailcap/3.74ubuntu1.1 https://launchpad.net/ubuntu/+source/mailcap/3.70+nmu1ubuntu1.24.04.1 https://launchpad.net/ubuntu/+source/mailcap/3.70+nmu1ubuntu1.22.04.1
signature.asc
Description: OpenPGP digital signature
