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CVE-2024-27935

Estado: AnalizadaAlta (8.3)—

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.35.1 and prior to version 1.36.3, a vulnerability in Deno's Node.js compatibility runtime allows for cross-session data contamination during simultaneous asynchronous reads from Node.js streams sourced from sockets or files. The issue arises from the re-use of a global buffer (BUF) in stream_wrap.ts used as a performance optimization to limit allocations during these asynchronous read operations.

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This can lead to data intended for one session being received by another session, potentially resulting in data corruption and unexpected behavior. This affects all users of Deno that use the node.js compatibility layer for network communication or other streams, including packages that may require node.js libraries indirectly. Version 1.36.3 contains a patch for this issue.

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).

Tecnologías afectadas (1)

Deno — Deno

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-27935",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-27935",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-08-02T20:04:17.278451Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
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        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.7,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "denoland",
          "product": "deno",
          "versions": [
            {
              "status": "affected",
              "version": ">= 1.35.1, < 1.36.3"
            }
          ]
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:denoland:deno:*:*:*:*:*:*:*:*"
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          "vendor": "denoland",
          "product": "deno",
          "versions": [
            {
              "status": "affected",
              "version": "1.35.1",
              "versionType": "custom",
              "lessThanOrEqual": "1.36.3"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
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  ],
  "published": "2024-03-21T02:52:22.627",
  "references": [
    {
      "url": "https://github.com/denoland/deno/commit/3e9fb8aafd9834ebacd27734cea4310caaf794c6",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
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    {
      "url": "https://github.com/denoland/deno/issues/20188",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "source": "security-advisories@github.com"
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    {
      "url": "https://github.com/denoland/deno/security/advisories/GHSA-wrqv-pf6j-mqjp",
      "tags": [
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      "source": "security-advisories@github.com"
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      "url": "https://github.com/denoland/deno/commit/3e9fb8aafd9834ebacd27734cea4310caaf794c6",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-488"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.35.1 and prior to version 1.36.3, a vulnerability in Deno's Node.js compatibility runtime allows for cross-session data contamination during simultaneous asynchronous reads from Node.js streams sourced from sockets or files. The issue arises from the re-use of a global buffer (BUF) in stream_wrap.ts used as a performance optimization to limit allocations during these asynchronous read operations. This can lead to data intended for one session being received by another session, potentially resulting in data corruption and unexpected behavior. This affects all users of Deno that use the node.js compatibility layer for network communication or other streams, including packages that may require node.js libraries indirectly. Version 1.36.3 contains a patch for this issue.\n"
    },
    {
      "lang": "es",
      "value": "Deno es un tiempo de ejecución de JavaScript, TypeScript y WebAssembly. A partir de la versión 1.35.1 y antes de la versión 1.36.3, una vulnerabilidad en el tiempo de ejecución de compatibilidad de Node.js de Deno permite la contaminación de datos entre sesiones durante lecturas asincrónicas simultáneas de flujos de Node.js provenientes de sockets o archivos. El problema surge de la reutilización de un búfer global (BUF) en stream_wrap.ts utilizado como optimización del rendimiento para limitar las asignaciones durante estas operaciones de lectura asincrónicas. Esto puede provocar que los datos destinados a una sesión sean recibidos por otra sesión, lo que podría provocar daños en los datos y comportamientos inesperados. Esto afecta a todos los usuarios de Deno que usan la capa de compatibilidad de node.js para la comunicación de red u otras transmisiones, incluidos los paquetes que pueden requerir librerías de node.js indirectamente. La versión 1.36.3 contiene un parche para este problema."
    }
  ],
  "lastModified": "2026-06-17T07:20:37.790",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9C495C2E-08BD-43EB-9210-6FF31E09ECCF",
              "versionEndExcluding": "1.36.3",
              "versionStartIncluding": "1.35.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}