CVE-2019-12589: Firejail Project Firejail

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

In Firejail before 0.9.60, seccomp filters are writable inside the jail, leading to a lack of intended seccomp restrictions for a process that is joined to the jail after a filter has been modified by an attacker.

Affected products

• Firejail Project Firejail: before 0.9.60 (fixed in 0.9.60)

Published 2019-06-03. Last modified 2026-06-17.