Vulnerability-Lookup

CVE-2026-0755 (GCVE-0-2026-0755)

Vulnerability from cvelistv5 – Published: 2026-01-23 03:26 – Updated: 2026-01-23 19:35

Title

gemini-mcp-tool execAsync Command Injection Remote Code Execution Vulnerability

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.

Severity

9.8 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

zdi

References

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory

Impacted products

1 product

Vendor	Product	Version
Gemini MCP Tool	gemini-mcp-tool	Affected: 1.1.2

Date Public

2026-01-09 16:17

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-0755",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-23T19:34:56.695313Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-23T19:35:07.197Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "gemini-mcp-tool",
          "vendor": "Gemini MCP Tool",
          "versions": [
            {
              "status": "affected",
              "version": "1.1.2"
            }
          ]
        }
      ],
      "dateAssigned": "2026-01-08T22:49:24.928Z",
      "datePublic": "2026-01-09T16:17:16.515Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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.\n\nThe 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-23T03:26:16.000Z",
        "orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
        "shortName": "zdi"
      },
      "references": [
        {
          "name": "ZDI-26-021",
          "tags": [
            "x_research-advisory"
          ],
          "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-021/"
        }
      ],
      "source": {
        "lang": "en",
        "value": "Peter Girnus (@gothburz) of Trend Research"
      },
      "title": "gemini-mcp-tool execAsync Command Injection Remote Code Execution Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
    "assignerShortName": "zdi",
    "cveId": "CVE-2026-0755",
    "datePublished": "2026-01-23T03:26:16.000Z",
    "dateReserved": "2026-01-08T22:49:24.875Z",
    "dateUpdated": "2026-01-23T19:35:07.197Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-0755",
      "date": "2026-07-22",
      "epss": "0.03336",
      "percentile": "0.87362"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-0755\",\"sourceIdentifier\":\"zdi-disclosures@trendmicro.com\",\"published\":\"2026-01-23T04:16:02.017\",\"lastModified\":\"2026-06-17T10:11:19.580\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\\n\\nThe 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.\"},{\"lang\":\"es\",\"value\":\"Vulnerabilidad de inyecci\u00f3n de comandos y ejecuci\u00f3n remota de c\u00f3digo en gemini-mcp-tool execAsync. Esta vulnerabilidad permite a atacantes remotos ejecutar c\u00f3digo arbitrario en instalaciones afectadas de gemini-mcp-tool. No se requiere autenticaci\u00f3n para explotar esta vulnerabilidad.\\n\\nLa falla espec\u00edfica existe dentro de la implementaci\u00f3n del m\u00e9todo execAsync. El problema resulta de la falta de validaci\u00f3n adecuada de una cadena proporcionada por el usuario antes de usarla para ejecutar una llamada al sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto de la cuenta de servicio. Fue ZDI-CAN-27783.\"}],\"affected\":[{\"source\":\"zdi-disclosures@trendmicro.com\",\"affectedData\":[{\"vendor\":\"Gemini MCP Tool\",\"product\":\"gemini-mcp-tool\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"1.1.2\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"zdi-disclosures@trendmicro.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-01-23T19:34:56.695313Z\",\"id\":\"CVE-2026-0755\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"zdi-disclosures@trendmicro.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"}]}],\"references\":[{\"url\":\"https://www.zerodayinitiative.com/advisories/ZDI-26-021/\",\"source\":\"zdi-disclosures@trendmicro.com\"}]}}",
    "redhat_vex": {
      "current_release_date": "2026-01-24T09:15:45+00:00",
      "cve": "CVE-2026-0755",
      "id": "CVE-2026-0755",
      "initial_release_date": "2026-01-09T16:17:16.515000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "gemini-mcp-tool execAsync Command Injection Remote Code Execution Vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0755.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-0755\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-23T19:34:56.695313Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-23T19:35:02.399Z\"}}], \"cna\": {\"title\": \"gemini-mcp-tool execAsync Command Injection Remote Code Execution Vulnerability\", \"source\": {\"lang\": \"en\", \"value\": \"Peter Girnus (@gothburz) of Trend Research\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\"}}], \"affected\": [{\"vendor\": \"Gemini MCP Tool\", \"product\": \"gemini-mcp-tool\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.1.2\"}], \"defaultStatus\": \"unknown\"}], \"datePublic\": \"2026-01-09T16:17:16.515Z\", \"references\": [{\"url\": \"https://www.zerodayinitiative.com/advisories/ZDI-26-021/\", \"name\": \"ZDI-26-021\", \"tags\": [\"x_research-advisory\"]}], \"dateAssigned\": \"2026-01-08T22:49:24.928Z\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\\n\\nThe 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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"99f1926a-a320-47d8-bbb5-42feb611262e\", \"shortName\": \"zdi\", \"dateUpdated\": \"2026-01-23T03:26:16.000Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-0755\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-23T19:35:07.197Z\", \"dateReserved\": \"2026-01-08T22:49:24.875Z\", \"assignerOrgId\": \"99f1926a-a320-47d8-bbb5-42feb611262e\", \"datePublished\": \"2026-01-23T03:26:16.000Z\", \"assignerShortName\": \"zdi\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-0755

Vulnerability from fkie_nvd - Published: 2026-01-23 04:16 - Updated: 2026-06-17 10:11

Severity

9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	zdi-disclosures@trendmicro.com	https://www.zerodayinitiative.com/advisories/ZDI-26-021/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "gemini-mcp-tool",
          "vendor": "Gemini MCP Tool",
          "versions": [
            {
              "status": "affected",
              "version": "1.1.2"
            }
          ]
        }
      ],
      "source": "zdi-disclosures@trendmicro.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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.\n\nThe 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."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de inyecci\u00f3n de comandos y ejecuci\u00f3n remota de c\u00f3digo en gemini-mcp-tool execAsync. Esta vulnerabilidad permite a atacantes remotos ejecutar c\u00f3digo arbitrario en instalaciones afectadas de gemini-mcp-tool. No se requiere autenticaci\u00f3n para explotar esta vulnerabilidad.\n\nLa falla espec\u00edfica existe dentro de la implementaci\u00f3n del m\u00e9todo execAsync. El problema resulta de la falta de validaci\u00f3n adecuada de una cadena proporcionada por el usuario antes de usarla para ejecutar una llamada al sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto de la cuenta de servicio. Fue ZDI-CAN-27783."
    }
  ],
  "id": "CVE-2026-0755",
  "lastModified": "2026-06-17T10:11:19.580",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "zdi-disclosures@trendmicro.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-0755",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-23T19:34:56.695313Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-23T04:16:02.017",
  "references": [
    {
      "source": "zdi-disclosures@trendmicro.com",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-021/"
    }
  ],
  "sourceIdentifier": "zdi-disclosures@trendmicro.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "zdi-disclosures@trendmicro.com",
      "type": "Secondary"
    }
  ]
}

GHSA-28QQ-5F47-R5X2

Vulnerability from github – Published: 2026-01-23 06:31 – Updated: 2026-06-18 20:44

Summary

Duplicate Advisory: gemini-mcp-tool vulnerable to OS command injection and @file exfiltration via prompt quoting (CVE-2026-0755)

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-4h5r-5jm8-jxjm. This link is maintained to preserve external references.

Original Description

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.

Severity

9.8 (Critical)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "gemini-mcp-tool"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.1.2"
            },
            {
              "fixed": "1.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-18T20:44:49Z",
    "nvd_published_at": "2026-01-23T04:16:02Z",
    "severity": "CRITICAL"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-4h5r-5jm8-jxjm. This link is maintained to preserve external references.\n\n### Original Description\ngemini-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.\n\nThe 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.",
  "id": "GHSA-28qq-5f47-r5x2",
  "modified": "2026-06-18T20:44:49Z",
  "published": "2026-01-23T06:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0755"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jamubc/gemini-mcp-tool"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-021"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Duplicate Advisory: gemini-mcp-tool vulnerable to OS command injection and @file exfiltration via prompt quoting (CVE-2026-0755)",
  "withdrawn": "2026-06-18T20:44:49Z"
}

GHSA-4H5R-5JM8-JXJM

Vulnerability from github – Published: 2026-06-18 20:44 – Updated: 2026-06-18 20:44

Summary

gemini-mcp-tool vulnerable to OS command injection and @file exfiltration via prompt quoting (CVE-2026-0755)

Details

Untrusted prompt input could reach the Gemini CLI @file parser, allowing read/exfiltration of arbitrary local files (@/etc/passwd, @~/.ssh/id_rsa, @../../secret). On Windows, unquoted cmd.exe metacharacters could break out into OS command injection.

Fix (1.1.6): removed the broken shell:false double-quote wrapping; added assertSafeFileReferences() to contain @file refs to the working directory; hardened Windows cmd.exe argument quoting.

Severity

9.8 (Critical)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "gemini-mcp-tool"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.1.2"
            },
            {
              "fixed": "1.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-0755"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-18T20:44:58Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "Untrusted prompt input could reach the Gemini CLI @file parser, allowing read/exfiltration of arbitrary local files (@/etc/passwd, @~/.ssh/id_rsa, @../../secret). On Windows, unquoted cmd.exe metacharacters could break out into OS command injection.\n\nFix (1.1.6): removed the broken shell:false double-quote wrapping; added assertSafeFileReferences() to contain @file refs to the working directory; hardened Windows cmd.exe argument quoting.",
  "id": "GHSA-4h5r-5jm8-jxjm",
  "modified": "2026-06-18T20:44:58Z",
  "published": "2026-06-18T20:44:58Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jamubc/gemini-mcp-tool/security/advisories/GHSA-4h5r-5jm8-jxjm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0755"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jamubc/gemini-mcp-tool"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-021"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "gemini-mcp-tool vulnerable to OS command injection and @file exfiltration via prompt quoting (CVE-2026-0755)"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-0755 (GCVE-0-2026-0755)

FKIE_CVE-2026-0755

GHSA-28QQ-5F47-R5X2

Duplicate Advisory

Original Description

GHSA-4H5R-5JM8-JXJM

Tags

Sightings

Nomenclature