Security restrictins bypass in Flatpak - CVE-2021-41133
Published: October 8, 2021 / Updated: April 8, 2026
Vulnerability identifier: #VU57176
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-41133
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Flatpak
Affected software:
Flatpak
Flatpak
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to an error in the VFS-manipulating syscalls implementation. A local user can bypass sandbox restrictions and escalate privileges on the system.
How to mitigate CVE-2021-41133
Install updates from vendor's website.