Vulnerability · Published Jan 23, 2026 · Assigned by zdi

CVE-2026-0755gemini-mcp-tool execAsync Command Injection Remote Code Execution Vulnerability

Critical 9.8

In plain English

A critical-severity OS command injection in gemini-mcp-tool from Gemini MCP Tool. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.4% (higher than 89% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.0)9.8Critical

Exploit odds (30 days)3.4%top 11.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	gemini-mcp-tool	1.1.6	GHSA-4h5r-5jm8-jxjm

Affected products (as reported)

Vendor	Product	Versions
Gemini MCP Tool	gemini-mcp-tool	1.1.2

Weakness: CWE-78 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ZDI-26-021 x_research-advisory