Firejail uses weak permissions for /dev/shm/firejail and possibly other files, which…
Priority LOW 34CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
Firejail uses weak permissions for /dev/shm/firejail and possibly other files, which allows local users to gain privileges.
Why it matters now
EPSS 0.00394 33rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:firejail_project:firejail:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Firejail Project |
- cpe:2.3:a:firejail_project:firejail:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Firejail Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-10121
- 2026-10-03 Alias added: GHSA-28rw-pgjg-j2jg
References
More Firejail Project Firejail vulnerabilities
- TI-2020-13142 Firejail through 0.9.62 mishandles shell metacharacters during use of the --output or… CVSS 3.1CRITICAL 9.8
- TI-2017-03321 Firejail before 0.9.44.4, when running on a Linux kernel before 4.8, allows… CVSS 3.0CRITICAL 9.0
- TI-2019-09401 In Firejail before 0.9.60, seccomp filters are writable inside the jail, leading to a… CVSS 3.0HIGH 8.8
- TI-2019-09334 Firejail before 0.9.60 allows truncation (resizing to length 0) of the firejail binary on… CVSS 3.0HIGH 8.1
- TI-2017-03296 Firejail before 0.9.44.4 and 0.9.38.x LTS before 0.9.38.8 LTS does not consider the… CVSS 3.0HIGH 8.8
- TI-2017-03858 Firejail before 0.9.44.6 and 0.9.38.x LTS before 0.9.38.10 LTS does not comprehensively… CVSS 3.0HIGH 8.8
Sources
- CVE-2016-10121 · CVE Program
- CVE-2016-10121 · NVD
- FIRST EPSS
- GHSA-28rw-pgjg-j2jg · GitHub Advisory Database · CC BY 4.0
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