CVE-2026-71966 CyberPanel 2.4.3 Authenticated Command Injection via starRemoteTransfer
Authenticated attackers can execute arbitrary OS commands in CyberPanel by injecting malicious code via remote backup transfer API responses.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71966?
CVE-2026-71966 is a high-severity command injection vulnerability in usmannasir cyberpanel, published on 10 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
CyberPanel 2.4.3, fixed in commit eca0c3c, contains an authenticated command injection vulnerability in the remote backup transfer feature that allows authenticated attackers to execute arbitrary OS commands by controlling a remote server's API response. Attackers can inject malicious commands through a crafted directory name in the remote server's API response, which bypasses security middleware validation and is passed unsanitized to the OS command execution function.
Weakness: CWE-78
Which versions are affected by CVE-2026-71966?
How do I fix CVE-2026-71966?
No fix has been published for CVE-2026-71966 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-71966 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-71966 exists.
Sources
Also known as GHSA-hmw4-vv3v-9326.