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CVE-2026-94445

Estado: Pendiente de análisisAlta (8.8)—

A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.

Disjointly, one of the three possible paths to invoke go vet on the playground host did not correctly restrict the execution environment. This permitted a Go process to make a read for an environment configuration file rooted in the playground host's $HOME.

Together, a well-crafted go env file and the go vet invocation could lead to remote code execution in the playground host itself.

This does not affect users of go.dev/play directly; however, it may affect independent deployments of golang.org/x/playground.

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.

Explotación que requiere interacción del usuario (UI:R) con archivo txtar malicioso en Go playground. Logra RCE en host mediante escape de contexto, ejecución de comandos y acceso a archivos del sistema de archivos confiable.

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

Restrict Web-Based ContentRestrict File and Directory PermissionsPrivileged Account ManagementRemote Data StorageLimit Software InstallationExecution Prevention

Tecnologías afectadas (1)

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

Golang — PlaygroundAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-94445",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-94445",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-25T17:08:10.870774Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@golang.org",
      "affectedData": [
        {
          "vendor": "golang.org/x/playground",
          "product": "golang.org/x/playground",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "0.0.0-20260924211604-6d73cff14c17",
              "versionType": "semver"
            }
          ],
          "packageName": "golang.org/x/playground",
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected"
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  "published": "2026-09-25T17:17:19.963",
  "references": [
    {
      "url": "https://go.dev/cl/838485",
      "source": "security@golang.org"
    },
    {
      "url": "https://go.dev/issue/81737",
      "source": "security@golang.org"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@golang.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.\n\n\n\nDisjointly, one of the three possible paths to invoke go vet on the playground host did not correctly restrict the execution environment. This permitted a Go process to make a read for an environment configuration file rooted in the playground host's $HOME.\n\n\n\nTogether, a well-crafted go env file and the go vet invocation could lead to remote code execution in the playground host itself.\n\n\n\n\nThis does not affect users of go.dev/play directly; however, it may affect independent deployments of golang.org/x/playground."
    }
  ],
  "lastModified": "2026-09-29T21:36:39.547",
  "sourceIdentifier": "security@golang.org"
}