FKIE_CVE-2026-59257

Vulnerability from fkie_nvd - Published: 2026-07-08 14:17 - Updated: 2026-10-29 19:17
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
n8n before 1.123.61, 2.x before 2.27.4, and 2.28.x before 2.28.1 contains a SQL injection vulnerability in the legacy MySQL v1 node's executeQuery operation. The operation substitutes evaluated {{ ... }} expression values directly into the raw SQL string without parameterization. When a workflow uses this operation with expression-sourced values and is connected to an externally-reachable trigger (such as a Webhook node), attacker-controlled input reaching those expressions results in SQL injection, allowing execution of arbitrary SQL with the configured MySQL credentials' privileges. The MySQL v2 node, which uses parameterized queries, is not affected.
References
disclosure@vulncheck.comhttps://github.com/n8n-io/n8n/security/advisories/GHSA-hwmj-qg4v-cvg9Mitigation, Vendor Advisory
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/n8n-sql-injection-in-mysql-v1-executequery-operation-via-expression-interpolationThird Party Advisory
Impacted products
Vendor Product Version
n8n n8n *
n8n n8n *
n8n n8n 2.28.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/n8n",
          "product": "n8n",
          "vendor": "n8n",
          "versions": [
            {
              "lessThan": "1.123.61",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.123.61",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/n8n",
          "product": "n8n",
          "vendor": "n8n",
          "versions": [
            {
              "lessThan": "2.28.1",
              "status": "affected",
              "version": "2.28.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.28.1",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/n8n",
          "product": "n8n",
          "vendor": "n8n",
          "versions": [
            {
              "lessThan": "2.27.4",
              "status": "affected",
              "version": "2.0.0-rc.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.27.4",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "0CE80F53-DE50-44CD-BC74-1D9A898177B1",
              "versionEndExcluding": "1.123.61",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "2B92B262-E732-459E-8732-3AC9B112C271",
              "versionEndExcluding": "2.27.4",
              "versionStartIncluding": "2.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:n8n:n8n:2.28.0:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "811995CE-011B-4680-892C-3D6DA0008411",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "n8n before 1.123.61, 2.x before 2.27.4, and 2.28.x before 2.28.1 contains a SQL injection vulnerability in the legacy MySQL v1 node\u0027s executeQuery operation. The operation substitutes evaluated {{ ... }} expression values directly into the raw SQL string without parameterization. When a workflow uses this operation with expression-sourced values and is connected to an externally-reachable trigger (such as a Webhook node), attacker-controlled input reaching those expressions results in SQL injection, allowing execution of arbitrary SQL with the configured MySQL credentials\u0027 privileges. The MySQL v2 node, which uses parameterized queries, is not affected."
    },
    {
      "lang": "es",
      "value": "n8n anterior a 1.123.61, 2.x anterior a 2.27.4, y 2.28.x anterior a 2.28.1 contiene una vulnerabilidad de inyecci\u00f3n SQL en la operaci\u00f3n executeQuery del nodo MySQL v1 heredado. La operaci\u00f3n sustituye los valores de expresiones {{ ... }} evaluados directamente en la cadena SQL sin procesar sin parametrizaci\u00f3n. Cuando un flujo de trabajo utiliza esta operaci\u00f3n con valores originados en expresiones y est\u00e1 conectado a un disparador accesible externamente (como un nodo Webhook), la entrada controlada por el atacante que llega a esas expresiones resulta en inyecci\u00f3n SQL, permitiendo la ejecuci\u00f3n de SQL arbitrario con los privilegios de las credenciales de MySQL configuradas. El nodo MySQL v2, que utiliza consultas parametrizadas, no se ve afectado."
    }
  ],
  "id": "CVE-2026-59257",
  "lastModified": "2026-10-29T19:17:24.860",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-59257",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-09T13:39:34.978946Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-08T14:17:20.807",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-hwmj-qg4v-cvg9"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/n8n-sql-injection-in-mysql-v1-executequery-operation-via-expression-interpolation"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}



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