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CVE-2021-41599

Estado: ModificadaAlta (8.8)—

A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.3 and was fixed in versions 3.0.21, 3.1.13, 3.2.5. This vulnerability was reported via the GitHub Bug Bounty program.

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)

Github — Enterprise Server

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-41599",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "product-cna@github.com",
      "affectedData": [
        {
          "vendor": "GitHub",
          "product": "GitHub Enterprise Server",
          "versions": [
            {
              "status": "affected",
              "version": "3.0",
              "lessThan": "3.0.21",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "3.1",
              "lessThan": "3.1.13",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "3.2",
              "lessThan": "3.2.5",
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            }
          ]
        }
      ]
    }
  ],
  "published": "2022-02-18T00:15:07.397",
  "references": [
    {
      "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.21",
      "source": "product-cna@github.com"
    },
    {
      "url": "https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.13",
      "source": "product-cna@github.com"
    },
    {
      "url": "https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.5",
      "source": "product-cna@github.com"
    },
    {
      "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.21",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.13",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.5",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "product-cna@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-77"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.3 and was fixed in versions 3.0.21, 3.1.13, 3.2.5. This vulnerability was reported via the GitHub Bug Bounty program."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad de ejecución de código remota en GitHub Enterprise Server que podía explotarse cuando era creado un sitio de GitHub Pages. Para explotar esta vulnerabilidad, un atacante necesitaría permiso para crear y construir un sitio de GitHub Pages en la instancia de GitHub Enterprise Server. Esta vulnerabilidad afectaba a todas las versiones de GitHub Enterprise Server anteriores a 3.3 y fue corregida en versiones 3.0.21, 3.1.13 y 3.2.5. Esta vulnerabilidad fue reportada por medio del programa GitHub Bug Bounty"
    }
  ],
  "lastModified": "2026-06-17T04:08:42.977",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "23C96DB9-581A-4879-995C-36578EEF464D",
              "versionEndExcluding": "3.0.21",
              "versionStartIncluding": "3.0.0"
            },
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              "criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "3.1.13",
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              "matchCriteriaId": "53DD1AB3-9525-4158-AB45-D333E88971EC",
              "versionEndExcluding": "3.2.5",
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          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "product-cna@github.com"
}