Description
Firejail through 0.9.62 does not honor the -- end-of-options indicator after the --output option, which may lead to command injection.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | firejail | 0.9.62-4 | — |
| Debian 13 | firejail | 0.9.62-4 | — |
| Debian 12 | firejail | 0.9.62-4 | — |
| Debian 10 | firejail | 0.9.58.2-2+deb10u1 | DSA-4742-1 |
| Debian 10 | mediawiki | 1:1.31.10-1~deb10u1 | DSA-4767-1 |
| Debian 9 | firejail | 0.9.44.8-2+deb9u1 | DLA-2336-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | firejail | No fix yet | — |
| Ubuntu 18.04 LTS | firejail | No fix yet | — |
| Ubuntu 16.04 LTS | firejail | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | firejail | 0.9.66-1.2 | openSUSE-SU-2024:10759-1 |
| openSUSE Leap 15.2 | firejail | 0.9.62-lp152.3.3.1 | openSUSE-SU-2021:0271-1, openSUSE-SU-2020:1208-1 |
Advisories 6
- DSA-4767-1 mediawiki - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4742-1 firejail - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2336-1 firejail - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2021:0271-1 Security update for firejail SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1208-1 Security update for firejail SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10759-1 firejail-0.9.66-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/netblue30/firejail
- https://www.debian.org/security/2020/dsa-4742
- DSA-4743 vendor-advisory
- openSUSE-SU-2020:1208 vendor-advisory
- [debian-lts-announce] 20200822 [SECURITY] [DLA 2336-1] firejail security update mailing-list
- FEDORA-2020-45fc8559d5 vendor-advisory
- FEDORA-2020-80a6d7e7e0 vendor-advisory
- GLSA-202101-02 vendor-advisory