(0Day) gemini-mcp-tool execAsync Command Injection Remote Code Execution Vulnerability
Vulnerability Details
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.
Additional Details
07/25/25 – ZDI submitted the reports to the vendor via a third-party platform
11/10/25 – ZDI asked for updates
12/14/25 – ZDI notified the vendor of the intention to publish the case as a 0-day advisory
-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the product
Disclosure Timeline
- 2025-07-25 - Vulnerability reported to vendor
- 2026-01-09 - Coordinated public release of advisory
- 2026-01-09 - Advisory Updated
Credit
Peter Girnus (@gothburz) of Trend Research
