FKIE_CVE-2026-94445

Vulnerability from fkie_nvd - Published: 2026-09-25 17:17 - Updated: 2026-09-25 18:17
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
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.
References
security@golang.orghttps://go.dev/cl/838485
security@golang.orghttps://go.dev/issue/81737
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "golang.org/x/playground",
          "product": "golang.org/x/playground",
          "vendor": "golang.org/x/playground",
          "versions": [
            {
              "lessThan": "0.0.0-20260924211604-6d73cff14c17",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@golang.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host\u0027s trusted filesystem.\n\n\n\nDisjointly, one of the three possible paths to invoke\u00a0go vet\u00a0on 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\u0027s $HOME.\n\n\n\nTogether, a well-crafted go env file and the\u00a0go vet\u00a0invocation 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\u00a0independent deployments of golang.org/x/playground."
    }
  ],
  "id": "CVE-2026-94445",
  "lastModified": "2026-09-25T18:17:33.730",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-94445",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-25T17:08:10.870774Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-25T17:17:19.963",
  "references": [
    {
      "source": "security@golang.org",
      "url": "https://go.dev/cl/838485"
    },
    {
      "source": "security@golang.org",
      "url": "https://go.dev/issue/81737"
    }
  ],
  "sourceIdentifier": "security@golang.org",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "security@golang.org",
      "type": "Secondary"
    }
  ]
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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