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CVE-2026-72771

Full vulnerability record from the local CVENow database.

Description

n8n versions before 2.32.1 fail to enforce the Allowed HTTP Request Domains allowlist in multiple AI and LLM nodes when user-supplied base or endpoint URLs are configured. Low-privileged workflow editors with use-only access to shared credentials can redirect requests to attacker-controlled hosts and exfiltrate credential secrets for reuse against underlying services.

Severity
HIGH
CVSS score
7.1 (v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-08-11 13:19:07.490000
Last modified
2026-10-29 21:17:31.327000
View original CVE JSON
{
  "id": "CVE-2026-72771",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-11T13:19:07.490",
  "lastModified": "2026-10-29T21:17:31.327",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "n8n versions before 2.32.1 fail to enforce the Allowed HTTP Request Domains allowlist in multiple AI and LLM nodes when user-supplied base or endpoint URLs are configured. Low-privileged workflow editors with use-only access to shared credentials can redirect requests to attacker-controlled hosts and exfiltrate credential secrets for reuse against underlying services."
    },
    {
      "lang": "es",
      "value": "Las versiones de n8n anteriores a la 2.32.1 no logran hacer cumplir la lista de permitidos de Dominios de Solicitudes HTTP en múltiples nodos de IA y LLM cuando se configuran URLs base o de punto final proporcionadas por el usuario. Editores de flujo de trabajo con bajos privilegios y acceso de solo uso a credenciales compartidas pueden redirigir solicitudes a hosts controlados por el atacante y exfiltrar secretos de credenciales para su reutilización contra servicios subyacentes."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n8n-io",
          "product": "n8n",
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/n8n",
          "versions": [
            {
              "version": "2.32.0",
              "lessThan": "2.32.1",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.32.1",
              "versionType": "semver",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "n8n-io",
          "product": "n8n",
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/n8n",
          "versions": [
            {
              "version": "0",
              "lessThan": "2.31.5",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.31.5",
              "versionType": "semver",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/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",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
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          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-14T19:49:23.438587Z",
          "id": "CVE-2026-72771",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*",
              "versionEndExcluding": "2.31.5",
              "matchCriteriaId": "77334F54-882E-43E7-83E5-A2615D82558D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*",
              "versionEndExcluding": "2.31.5",
              "matchCriteriaId": "0C65E4DA-D340-4786-8C75-89319F5D65C8"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:n8n:n8n:2.32.0:*:*:*:community:node.js:*:*",
              "matchCriteriaId": "A6AC605A-BDCF-4BFC-8B13-760CA2BD4C6C"
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  ],
  "references": [
    {
      "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-64xh-79j6-r5v8",
      "source": "[email protected]",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.vulncheck.com/advisories/n8n-before-credential-restriction-bypass-via-ai-llm-nodes",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}