Summary
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.
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 22.04 LTS 22.04:LTS | mailcap | 3.70+nmu1ubuntu1.22.04.1 |
| Ubuntu · 24.04 LTS 24.04:LTS | mailcap | 3.70+nmu1ubuntu1.24.04.1 |
| Ubuntu · 25.10 | mailcap | 3.74ubuntu1.1 |
| Ubuntu · 26.04 LTS 26.04:LTS | mailcap | 3.75ubuntu1.1 |
References
-
report
https://ubuntu.com/security/CVE-2026-10037