OS Command Injection in Hestia Control Panel - #VU164474
Published: November 10, 2026
Vulnerability identifier: #VU164474
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary commands as root on the hosting server.
The vulnerability exists due to OS command injection in Hestia Control Panel's bin/v-delete-user-ssh-key when a user-controlled keyid is interpolated into a GNU sed expression after validation checks the wrong variable. A remote user can submit a crafted key parameter to /delete/key/ using sed's e command to execute shell commands with root privileges.
Affected software
Hestia Control Panel
Remediation
Install security update from vendor's website.
Hestia Control Panel - update to 1.10.6