Critical severity9.8NVD Advisory· Published Jan 23, 2026· Updated Apr 15, 2026

CVE-2026-0755

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
gemini-mcp-toolnpm	>= 1.1.2, < 1.1.6	1.1.6

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-4h5r-5jm8-jxjmghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-0755ghsaADVISORY
github.com/jamubc/gemini-mcp-tool/security/advisories/GHSA-4h5r-5jm8-jxjmghsaWEB
www.zerodayinitiative.com/advisories/ZDI-26-021ghsaWEB
www.zerodayinitiative.com/advisories/ZDI-26-021/nvd

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cvss	0.637
epss	0.003
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000