CVE-2026-10037

Summary

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.

Affected Software

VendorProductVersion RangeStatus
CanonicalUbuntu0 < 3.70+nmu1ubuntu1.22.04.1affected
CanonicalUbuntu0 < 3.70+nmu1ubuntu1.24.04.1affected
CanonicalUbuntu0 < 3.74ubuntu1.1affected
CanonicalUbuntu0 < 3.75ubuntu1.1affected

Weaknesses

  • CWE-20: CWE-20 Improper input validation

References