CVE-2026-10037 Affecting mailcap package, versions <3.75ubuntu1.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UBUNTU2604-MAILCAP-17896572
- published9 Jul 2026
- disclosed8 Jul 2026
Introduced: 8 Jul 2026
CVE-2026-10037 (opens in a new tab)How to fix?
Upgrade Ubuntu:26.04 mailcap to version 3.75ubuntu1.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mailcap package and not the mailcap package as distributed by Ubuntu.
See How to fix? for Ubuntu:26.04 relevant fixed versions and status.
A sandbox escape vulnerability exists in the OpenJDK packages provided in Ubuntu. The .jar MIME handlers installed by these packages execute files marked as executable when the mailcap package is installed. A compromised or malicious sandboxed application with access to the OpenURI portal via xdg-desktop-portal-gtk can write a malicious .jar file to the host file system, set its executable bit, and trigger the handler to execute arbitrary code outside of the sandbox environment.