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CVE-2026-23869

Estado: Pendiente de análisisAlta (7.5)—

A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack (versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4). The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad remota sin autenticación (AV:N/PR:N) en endpoints públicos de React Server Components. Impacto principal DoS por consumo de CPU (CWE-400, CWE-770); ejecución secundaria por deserialización insegura (CWE-502).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementFilter Network TrafficVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software Installation

Tecnologías afectadas (3)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Facebook — React-server-dom-parcelAIFacebook — React-server-dom-turbopackAIFacebook — React-server-dom-webpackAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-23869",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23869",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-08T19:55:33.314236Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve-assign@fb.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve-assign@fb.com",
      "affectedData": [
        {
          "vendor": "Meta",
          "product": "react-server-dom-turbopack",
          "versions": [
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              "status": "affected",
              "version": "19.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "19.0.4"
            },
            {
              "status": "affected",
              "version": "19.1.0",
              "versionType": "semver",
              "lessThanOrEqual": "19.1.5"
            },
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              "status": "affected",
              "version": "19.2.0",
              "versionType": "semver",
              "lessThanOrEqual": "19.2.4"
            }
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          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Meta",
          "product": "react-server-dom-parcel",
          "versions": [
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              "version": "19.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "19.0.4"
            },
            {
              "status": "affected",
              "version": "19.1.0",
              "versionType": "semver",
              "lessThanOrEqual": "19.1.5"
            },
            {
              "status": "affected",
              "version": "19.2.0",
              "versionType": "semver",
              "lessThanOrEqual": "19.2.4"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Meta",
          "product": "react-server-dom-webpack",
          "versions": [
            {
              "status": "affected",
              "version": "19.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "19.0.4"
            },
            {
              "status": "affected",
              "version": "19.1.0",
              "versionType": "semver",
              "lessThanOrEqual": "19.1.5"
            },
            {
              "status": "affected",
              "version": "19.2.0",
              "versionType": "semver",
              "lessThanOrEqual": "19.2.4"
            }
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          "defaultStatus": "unaffected"
        }
      ]
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "affectedData": [
        {
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "packageName": "rhoai/odh-dashboard-rhel9",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-04-08T20:16:23.003",
  "references": [
    {
      "url": "https://github.com/facebook/react/security/advisories/GHSA-479c-33wc-g2pg",
      "source": "cve-assign@fb.com"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-23869",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456663",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23869.json",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack (versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4). The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de denegación de servicio existe en los Componentes de Servidor de React, que afecta a los siguientes paquetes: react-server-dom-parcel, react-server-dom-turbopack y react-server-dom-webpack (versiones 19.0.0 a 19.0.4, 19.1.0 a 19.1.5, y 19.2.0 a 19.2.4). La vulnerabilidad se activa al enviar solicitudes HTTP especialmente diseñadas a los puntos finales de la Función de Servidor. La carga útil de la solicitud HTTP causa un uso excesivo de la CPU durante hasta un minuto, terminando en un error lanzado que es capturable."
    }
  ],
  "lastModified": "2026-07-25T11:10:00.100",
  "sourceIdentifier": "cve-assign@fb.com"
}