CVE-2026-0755 gemini-mcp-tool execAsync Command Injection Remote Code Execution Vulnerability
Remote attackers can execute arbitrary code via command injection in the execAsync method of the gemini-mcp-tool library without authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-0755?
CVE-2026-0755 is a critical command injection vulnerability in gemini-mcp-tool, published on 23 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
gemini-mcp-tool execAsync Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of gemini-mcp-tool. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the implementation of the execAsync method. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-27783.
Weakness: CWE-78
Which versions are affected by CVE-2026-0755?
2 open source packages ship an affected version, including gemini-mcp-tool.
| Package | Affected | Fixed in |
|---|---|---|
gemini-mcp-tool npm | From 1.1.2 | 1.1.6 |
gemini-mcp-tool npm | From 1.1.2 | 1.1.6 |
How do I fix CVE-2026-0755?
Upgrade gemini-mcp-tool to 1.1.6 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-0755 being exploited?
There is no known exploitation of CVE-2026-0755 in the wild and no public exploit code.
Sources
Also known as GHSA-4h5r-5jm8-jxjm.