OS command injection in gemini-mcp-tool
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-78.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Gemini MCP Tool | gemini-mcp-tool | 1.1.2 | — | No fix listed | CNA |
| — | gemini-mcp-tool (npm) | 1.1.2 to before 1.1.6 | 1.1.6 | Patch available | GHSA-4h5r-5jm8-jxjm |
- gemini-mcp-tool VendorGemini MCP Tool Affected 1.1.2 Fixed in — No fix listed CNA
- gemini-mcp-tool (npm) Vendor— Affected 1.1.2 to before 1.1.6 Fixed in 1.1.6 Patch available GHSA-4h5r-5jm8-jxjm
Remediation
- Fix · GHSA-4h5r-5jm8-jxjm gemini-mcp-tool (npm) Fixed in 1.1.6 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-0755
- 2026-10-03 Alias added: GHSA-4h5r-5jm8-jxjm
References
Sources
- CVE-2026-0755 · CVE Program
- CVE-2026-0755 · NVD
- FIRST EPSS
- GHSA-4h5r-5jm8-jxjm · GitHub Advisory Database · CC BY 4.0
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