FKIE_CVE-2021-21297

Vulnerability from fkie_nvd - Published: 2021-02-26 17:15 - Updated: 2026-06-17 03:35
Severity
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
Node-Red is a low-code programming for event-driven applications built using nodejs. Node-RED 1.2.7 and earlier contains a Prototype Pollution vulnerability in the admin API. A badly formed request can modify the prototype of the default JavaScript Object with the potential to affect the default behaviour of the Node-RED runtime. The vulnerability is patched in the 1.2.8 release. A workaround is to ensure only authorized users are able to access the editor url.
References
security-advisories@github.comhttps://github.com/node-red/node-red/releases/tag/1.2.8Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/node-red/node-red/security/advisories/GHSA-xp9c-82x8-7f67Third Party Advisory
security-advisories@github.comhttps://www.npmjs.com/package/%40node-red/editor-api
security-advisories@github.comhttps://www.npmjs.com/package/%40node-red/runtime
af854a3a-2127-422b-91ae-364da2661108https://github.com/node-red/node-red/releases/tag/1.2.8Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/node-red/node-red/security/advisories/GHSA-xp9c-82x8-7f67Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.npmjs.com/package/%40node-red/editor-api
af854a3a-2127-422b-91ae-364da2661108https://www.npmjs.com/package/%40node-red/runtime
Impacted products
Vendor Product Version
nodered node-red *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "node-red",
          "vendor": "node-red",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.2.8"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nodered:node-red:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "FD380E45-4954-4427-90D5-66896B983B30",
              "versionEndExcluding": "1.2.8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Node-Red is a low-code programming for event-driven applications built using nodejs. Node-RED 1.2.7 and earlier contains a Prototype Pollution vulnerability in the admin API. A badly formed request can modify the prototype of the default JavaScript Object with the potential to affect the default behaviour of the Node-RED runtime. The vulnerability is patched in the 1.2.8 release. A workaround is to ensure only authorized users are able to access the editor url."
    },
    {
      "lang": "es",
      "value": "Node-Red es una programaci\u00f3n de low-code para aplicaciones basadas en eventos dise\u00f1adas usando nodejs.\u0026#xa0;Node-RED versiones 1.2.7 y anteriores contienen, una vulnerabilidad de Contaminaci\u00f3n de Prototipos en la API de administraci\u00f3n.\u0026#xa0;Una petici\u00f3n mal formada puede modificar el prototipo del Objeto JavaScript predeterminado con el potencial de afectar el comportamiento predeterminado del tiempo de ejecuci\u00f3n de Node-RED.\u0026#xa0;La vulnerabilidad est\u00e1 parcheada en versi\u00f3n 1.2.8.\u0026#xa0;Una soluci\u00f3n alternativa es asegurarse de que solo los usuarios autorizados puedan ser capaces de acceder a la URL de editor"
    }
  ],
  "id": "CVE-2021-21297",
  "lastModified": "2026-06-17T03:35:14.380",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-02-26T17:15:12.210",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/node-red/node-red/releases/tag/1.2.8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/node-red/node-red/security/advisories/GHSA-xp9c-82x8-7f67"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://www.npmjs.com/package/%40node-red/editor-api"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://www.npmjs.com/package/%40node-red/runtime"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/node-red/node-red/releases/tag/1.2.8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/node-red/node-red/security/advisories/GHSA-xp9c-82x8-7f67"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.npmjs.com/package/%40node-red/editor-api"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.npmjs.com/package/%40node-red/runtime"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-915"
        },
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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