CVE-2017-5180: Firejail Project Firejail

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Firejail before 0.9.44.4 and 0.9.38.x LTS before 0.9.38.8 LTS does not consider the .Xauthority case during its attempt to prevent accessing user files with an euid of zero, which allows local users to conduct sandbox-escape attacks via vectors involving a symlink and the --private option.

Affected products

• Firejail Project Firejail: before 0.9.44.4 (fixed in 0.9.44.4); from 0.9.38, before 0.9.38.8 (fixed in 0.9.38.8)

Published 2017-02-09. Last modified 2026-06-17.