Impact
The vulnerability allows a user with administrator privileges on macOS to elevate their rights to root during the installation or upgrade of Mullvad VPN versions 2026.1 and earlier. The installer executes binaries from the /Applications/Mullvad VPN.app bundle without verifying that the bundle is the legitimate Mullvad application or that it has not been tampered with. A crafted application bundle placed at that location can execute arbitrary code with root privileges, violating confidentiality, integrity, and availability of the system.
Affected Systems
Affected product: Mullvad VPN application for macOS. Versions up to and including 2026.1 are impacted. The issue was fixed in version 2026.2-beta1.
Risk and Exploitability
The CVSS score of 7.3 indicates a high severity local privilege escalation risk. The EPSS score is 6e-05 (< 1%), indicating a low probability of exploitation, and the vulnerability is not listed in the CISA KEV catalog, suggesting it is not actively exploited in the wild. The exploitation path requires a local admin to install or upgrade the app, making it a local attack vector. An attacker can pre-place a malicious bundle at /Applications/Mullvad VPN.app prior to installation or upgrade to achieve code execution as root.
OpenCVE Enrichment