An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getS…

cve CVE-2026-51996 2 sources, 3 claims · Watch

NVD writes:
An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function the claim

Severity they disagree: critical, unknown GitHub advisories
CRITICAL NVD
CVSS: 9.8 GitHub advisories
9.8 NVD
Vendor: n/a NVD
Product: n/a NVD
CWE: CWE-94 GitHub advisories
CWE-328 NVD

How far exploitation has got

No public code known
Proof of concept
Proof of concept, verified
A Metasploit module
Exploited in the wild
Used in ransomware campaigns

Timeline

2026-09-24	first spoke of it: An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary...	GitHub advisories
2026-09-24	first spoke of it: An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function	NVD

An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function

What it is to other things

In words only, so not counted until a person confirms one:

affects	`n_a/n_a` NVD says “n/a · n/a”
made_by	`n_a` NVD says “n/a”

Every value, with what each source said and its receipt

Property Source Said Means here

Automatable

automatable

NVD

yes

An attacker can reliably run all of the kill chain's first four steps without a person.

receipt

Source: NVD
Its words: yes
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].automatable
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	yes
2026-09-29 09:39 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS

cvss

GitHub advisories

9.8

receipt

Source: GitHub advisories
Its words: 9.8
Read by: field:cvss.score
Said since: 2026-09-29 09:48 UTC
Last answered: 2026-10-06 13:46 UTC
Original: open at the source

2026-09-29 09:48 UTC	9.8
2026-09-28 11:44 UTC	—

What the source handed over

{
  "credits": [],
  "cve_id": "CVE-2026-51996",
  "cvss": {
    "score": 9.8,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 9.8,
      "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    },
    "cvss_v4": {
      "score": 0.0,
      "vector_string": null
    }
  },
  "cwes": [
    {
      "cwe_id": "CWE-94",
      "name": "Improper Control of Generation of Code ('Code Injection')"
    }
  ],
  "description": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function",
  "epss": {
    "percentage": 0.00289,
    "percentile": 0.19136
  },
  "ghsa_id": "GHSA-mvq8-g2rm-4rhm",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-mvq8-g2rm-4rhm",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-mvq8-g2rm-4rhm"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-51996"
    }
  ],
  "nvd_published_at": "2026-09-24T15:17:23Z",
  "published_at": "2026-09-24T15:31:34Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-51996",
    "https://github.com/geelen/mcp-remote",
    "https://github.com/geelen/mcp-remote/security/advisories",
    "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md",
    "https://github.com/advisories/GHSA-mvq8-g2rm-4rhm"
  ],
  "repository_advisory_url": null,
  "severity": "critical",
  "source_code_location": "",
  "summary": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary...",
  "type": "unreviewed",
  "updated_at": "2026-09-29T03:30:38Z",
  "url": "https://api.github.com/advisories/GHSA-mvq8-g2rm-4rhm",
  "vulnerabilities": [],
  "withdrawn_at": null
}

—

CVSS

cvss

NVD

9.8

receipt

Source: NVD
Its words: 9.8
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-09-29 09:39 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

CVSS vector

cvss_vector

NVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

receipt

Source: NVD
Its words: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2026-09-29 09:39 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

CWE

cwe

different words

GitHub advisories

CWE-94

receipt

Source: GitHub advisories
Its words: CWE-94
Read by: field:cwes[].cwe_id
Said since: 2026-09-29 09:48 UTC
Last answered: 2026-10-06 13:46 UTC
Original: open at the source

2026-09-29 09:48 UTC	CWE-94
2026-09-28 11:44 UTC	—

What the source handed over

{
  "credits": [],
  "cve_id": "CVE-2026-51996",
  "cvss": {
    "score": 9.8,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 9.8,
      "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    },
    "cvss_v4": {
      "score": 0.0,
      "vector_string": null
    }
  },
  "cwes": [
    {
      "cwe_id": "CWE-94",
      "name": "Improper Control of Generation of Code ('Code Injection')"
    }
  ],
  "description": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function",
  "epss": {
    "percentage": 0.00289,
    "percentile": 0.19136
  },
  "ghsa_id": "GHSA-mvq8-g2rm-4rhm",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-mvq8-g2rm-4rhm",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-mvq8-g2rm-4rhm"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-51996"
    }
  ],
  "nvd_published_at": "2026-09-24T15:17:23Z",
  "published_at": "2026-09-24T15:31:34Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-51996",
    "https://github.com/geelen/mcp-remote",
    "https://github.com/geelen/mcp-remote/security/advisories",
    "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md",
    "https://github.com/advisories/GHSA-mvq8-g2rm-4rhm"
  ],
  "repository_advisory_url": null,
  "severity": "critical",
  "source_code_location": "",
  "summary": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary...",
  "type": "unreviewed",
  "updated_at": "2026-09-29T03:30:38Z",
  "url": "https://api.github.com/advisories/GHSA-mvq8-g2rm-4rhm",
  "vulnerabilities": [],
  "withdrawn_at": null
}

—

CWE

cwe

different words

NVD

CWE-328

receipt

Source: NVD
Its words: CWE-328
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CWE-328
2026-09-29 09:39 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

Exploitation

exploitation

NVD

none

No evidence of exploitation, and no public proof of concept.

receipt

Source: NVD
Its words: none
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].exploitation
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	none
2026-09-29 09:39 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

Product

product

NVD

n/a

receipt

Source: NVD
Its words: n/a
Read by: field:cve.affected[].affectedData[].product
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	n/a
2026-09-29 09:39 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

Severity

severity

conflict

GitHub advisories

critical

GitHub's own rating, from the CVSS base score at 9.0 and above.

receipt

Source: GitHub advisories
Its words: critical
Read by: field:severity
Said since: 2026-09-29 09:48 UTC
Last answered: 2026-10-06 13:46 UTC
Original: open at the source

2026-09-29 09:48 UTC	critical
2026-09-28 11:44 UTC	unknown

What the source handed over

{
  "credits": [],
  "cve_id": "CVE-2026-51996",
  "cvss": {
    "score": 9.8,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 9.8,
      "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    },
    "cvss_v4": {
      "score": 0.0,
      "vector_string": null
    }
  },
  "cwes": [
    {
      "cwe_id": "CWE-94",
      "name": "Improper Control of Generation of Code ('Code Injection')"
    }
  ],
  "description": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function",
  "epss": {
    "percentage": 0.00289,
    "percentile": 0.19136
  },
  "ghsa_id": "GHSA-mvq8-g2rm-4rhm",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-mvq8-g2rm-4rhm",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-mvq8-g2rm-4rhm"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-51996"
    }
  ],
  "nvd_published_at": "2026-09-24T15:17:23Z",
  "published_at": "2026-09-24T15:31:34Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-51996",
    "https://github.com/geelen/mcp-remote",
    "https://github.com/geelen/mcp-remote/security/advisories",
    "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md",
    "https://github.com/advisories/GHSA-mvq8-g2rm-4rhm"
  ],
  "repository_advisory_url": null,
  "severity": "critical",
  "source_code_location": "",
  "summary": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary...",
  "type": "unreviewed",
  "updated_at": "2026-09-29T03:30:38Z",
  "url": "https://api.github.com/advisories/GHSA-mvq8-g2rm-4rhm",
  "vulnerabilities": [],
  "withdrawn_at": null
}

—

Severity

severity

conflict

unknown

receipt

Source: GitHub advisories
Said since: 2026-09-26 15:00 UTC
Last answered: 2026-10-06 13:46 UTC
Original: open at the source

This source has not kept a receipt for this claim yet. The next update that reads it will.

—

Severity

severity

conflict

NVD

CRITICAL

From the CVSS base score at 9.0 and above.

receipt

Source: NVD
Its words: CRITICAL
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CRITICAL
2026-09-29 09:39 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

critical

Status

status

NVD

Deferred

receipt

Source: NVD
Its words: Deferred
Read by: field:cve.vulnStatus
Said since: 2026-09-29 09:39 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

Technical impact

technical_impact

NVD

total

The attacker gains full control of the component, or all of its information.

receipt

Source: NVD
Its words: total
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	total
2026-09-29 09:39 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

Vendor

vendor

NVD

n/a

receipt

Source: NVD
Its words: n/a
Read by: field:cve.affected[].affectedData[].vendor
Said since: 2026-09-29 17:49 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-09-29 17:49 UTC	n/a
2026-09-29 09:39 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "n/a",
            "vendor": "n/a",
            "versions": [
              {
                "status": "affected",
                "version": "n/a"
              }
            ]
          }
        ],
        "source": "cve@mitre.org"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
      }
    ],
    "id": "CVE-2026-51996",
    "lastModified": "2026-09-29T16:17:08.197",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-51996",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-29T02:22:07.273180Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-24T15:17:23.280",
    "references": [
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/geelen/mcp-remote/security/advisories"
      },
      {
        "source": "cve@mitre.org",
        "url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
      }
    ],
    "sourceIdentifier": "cve@mitre.org",
    "vulnStatus": "Deferred",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-328"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}

—

Every claim, by kind

vulnerability

An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function zetlyn/cve-nvd · 2026-09-24	automatable yes cvss 9.8 cvss_vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H cwe CWE-328 exploitation none product n/a severity CRITICAL status Deferred technical_impact total vendor n/a	source
An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary... zetlyn/cve-ghsa · 2026-09-24	severity unknown	source
An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary... zetlyn/cve-ghsa · 2026-09-24	cvss 9.8 cwe CWE-94 severity critical	source