{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Rejected reason: This CVE is a duplicate of CVE-2025-55182."
    }
  ],
  "id": "CVE-2025-66478",
  "lastModified": "2025-12-03T18:15:47.200",
  "metrics": {},
  "published": "2025-12-03T18:15:47.200",
  "references": [],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Rejected"
}

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n    NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n    NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n    This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
      },
      {
        "category": "description",
        "text": "React heeft kwetsbaarheden verholpen in bepaalde versies van React Server Components (specifiek voor versies 19.0.0, 19.1.0, 19.1.1 en 19.2.0).",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "Een ongeauthenticeerde aanvaller kan een malafide HTTP-verzoek sturen naar elk Server Function-endpoint dat, wanneer het door React wordt verwerkt, kan leiden tot remote code execution op de server. Echter, zelf als een Server Function-endpoint niet is ge\u00efmplementeerd, kan exploitatie nog steeds mogelijk zijn via React Server Components. Door deze fout kunnen aanvallers op afstand willekeurige code uitvoeren, wat de integriteit van de getroffen applicaties ernstig in gevaar brengt.\n\nDe kwetsbaarheid bevindt zich in de React versies 19.0, 19.1.0, 19.1.1 en 19.2.0 van:\n\n- react-server-dom-webpack\n- react-server-dom-parcel\n- react-server-dom-turbopack\n\nAls bovengenoemde pakketten worden gebruikt, upgrade dan onmiddellijk. Deze kwetsbaarheid is verholpen in de versies 19.0.1, 19.1.2 en 19.2.1. Als de React-code van uw applicatie geen server gebruikt, is uw applicatie niet kwetsbaar voor deze kwetsbaarheid. Eveneens, als uw applicatie geen framework, bundler of bundler-plugin gebruikt die React Server Components ondersteunt, is uw applicatie niet getroffen. \n\nDe volgende React-frameworks en bundlers zijn getroffen: \n\n- Next\n- React Router\n- Waku\n- @parcel/rsc\n- @vitejs/plugin-rsc\n- rwsdk\n\nDe kwetsbaarheid treft ook Next.js met App Router, en heeft het kenmerk CVE-2025-66478. De kwetsbaarheid bevindt zich in de Next.js-versies 14.3.0-canary, 15.x en 16.x en is verholpen in de volgende gepatchte versies: 14.3.0-canary.88, 15.0.5, 15.1.9, 15.2.6, 15.3.6, 15.4.8, 15.5.7 en 16.0.7.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "React heeft beveiligingsupdates uitgebracht om de kwetsbaarheid te verhelpen. Het NCSC adviseert om deze updates zo snel mogelijk te installeren. Zie de instructies van React voor meer informatie.",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Deserialization of Untrusted Data",
        "title": "CWE-502"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55182"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66478"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://www.wiz.io/blog/critical-vulnerability-in-react-cve-2025-55182"
      }
    ],
    "title": "Kwetsbaarheden verholpen in React Server Components",
    "tracking": {
      "current_release_date": "2025-12-03T20:11:57.728117Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.3"
        }
      },
      "id": "NCSC-2025-0380",
      "initial_release_date": "2025-12-03T20:11:57.728117Z",
      "revision_history": [
        {
          "date": "2025-12-03T20:11:57.728117Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-1"
                }
              }
            ],
            "category": "product_name",
            "name": "react-server-dom-parcel"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-2"
                }
              }
            ],
            "category": "product_name",
            "name": "react-server-dom-turbopack"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-3"
                }
              }
            ],
            "category": "product_name",
            "name": "react-server-dom-webpack"
          }
        ],
        "category": "vendor",
        "name": "Meta"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-4"
                }
              }
            ],
            "category": "product_name",
            "name": "react-server-dom-parcel"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-5"
                }
              }
            ],
            "category": "product_name",
            "name": "react-server-dom-turbopack"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-6"
                }
              }
            ],
            "category": "product_name",
            "name": "react-server-dom-webpack"
          }
        ],
        "category": "vendor",
        "name": "Meta Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-55182",
      "cwe": {
        "id": "CWE-502",
        "name": "Deserialization of Untrusted Data"
      },
      "notes": [
        {
          "category": "other",
          "text": "Deserialization of Untrusted Data",
          "title": "CWE-502"
        },
        {
          "category": "description",
          "text": "A critical unauthenticated remote code execution vulnerability exists in specific versions of React Server Components due to unsafe deserialization, affecting versions 19.0.0 to 19.2.0.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-55182 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-55182.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 10.0,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4",
            "CSAFPID-5",
            "CSAFPID-6"
          ]
        }
      ],
      "title": "CVE-2025-55182"
    },
    {
      "cve": "CVE-2025-66478",
      "cwe": {
        "id": "CWE-502",
        "name": "Deserialization of Untrusted Data"
      },
      "notes": [
        {
          "category": "other",
          "text": "Deserialization of Untrusted Data",
          "title": "CWE-502"
        },
        {
          "category": "description",
          "text": "A vulnerability tracked as CVE-2025-55182 has been identified in specific React packages, including Next.js versions 15.x and 16.x, necessitating upgrades to patched versions.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-66478 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-66478.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 10.0,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4",
            "CSAFPID-5",
            "CSAFPID-6"
          ]
        }
      ],
      "title": "CVE-2025-66478"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "14.3.0-canary.77"
            },
            {
              "fixed": "15.0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.1.0-canary.0"
            },
            {
              "fixed": "15.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.2.0-canary.0"
            },
            {
              "fixed": "15.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.3.0-canary.0"
            },
            {
              "fixed": "15.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.4.0-canary.0"
            },
            {
              "fixed": "15.4.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.5.0-canary.0"
            },
            {
              "fixed": "15.5.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "next"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "16.0.0-canary.0"
            },
            {
              "fixed": "16.0.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-66478"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-03T19:07:11Z",
    "nvd_published_at": "2025-12-03T18:15:47Z",
    "severity": "CRITICAL"
  },
  "details": "A vulnerability affects certain React packages\u003csup\u003e1\u003c/sup\u003e for versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 and frameworks that use the affected packages, including Next.js 15.x and 16.x using the App Router. The issue is tracked upstream as [CVE-2025-55182](https://www.cve.org/CVERecord?id=CVE-2025-55182). \n\nFixed in:\nReact: 19.0.1, 19.1.2, 19.2.1\nNext.js: 15.0.5, 15.1.9, 15.2.6, 15.3.6, 15.4.8, 15.5.7, 16.0.7\n\nThe vulnerability also affects experimental canary releases starting with 14.3.0-canary.77. Users on any of the 14.3 canary builds should either downgrade to a 14.x stable release or 14.3.0-canary.76.\n\nAll users of stable 15.x or 16.x Next.js versions should upgrade to a patched, stable version immediately.\n\n\u003csup\u003e1\u003c/sup\u003e The affected React packages are:\n- react-server-dom-parcel\n- react-server-dom-turbopack\n- react-server-dom-webpack",
  "id": "GHSA-9qr9-h5gf-34mp",
  "modified": "2025-12-04T20:07:06Z",
  "published": "2025-12-03T19:07:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/security/advisories/GHSA-9qr9-h5gf-34mp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66478"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vercel/next.js"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Next.js is vulnerable to RCE in React flight protocol"
}