CVE-2021-26910
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-26910
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26910.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-26910
- Downstream
- Related
- Published
- 2021-02-08T20:15:13.090Z
- Modified
- 2025-11-20T11:37:25.585384Z
- Severity
-
- 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Firejail before 0.9.64.4 allows attackers to bypass intended access restrictions because there is a TOCTOU race condition between a stat operation and an OverlayFS mount operation.
- References
-
- http://www.openwall.com/lists/oss-security/2021/02/09/1
- https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b
- https://github.com/netblue30/firejail/releases/tag/0.9.64.4
- https://lists.debian.org/debian-lts-announce/2021/02/msg00015.html
- https://security.gentoo.org/glsa/202105-19
- https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/
- https://unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt
- https://www.debian.org/security/2021/dsa-4849
Affected packages
Git / github.com/netblue30/firejail
Affected ranges
- Type
- GIT
- Repo
- https://github.com/netblue30/firejail
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
Affected versions
0.*
0.9.30
0.9.30-rc1
0.9.32
0.9.32-rc1
0.9.34
0.9.34-rc1
0.9.36
0.9.36-rc1
0.9.38
0.9.38-rc1
0.9.40
0.9.40-rc1
0.9.42
0.9.42-rc1
0.9.42-rc2
0.9.44
0.9.44-rc1
0.9.46-rc1
0.9.48
0.9.50-rc1
0.9.52
0.9.54
0.9.54-rc1
0.9.54-rc2
0.9.56
0.9.56-rc1
0.9.58
0.9.58-rc1
0.9.58.2
0.9.60
0.9.60-rc1
0.9.64
0.9.64.2
0.9.64rc1
Other
disable-globalcfg