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CVE-2021-39867

Estado: ModificadaAlta (8.1)—

En todas las versiones de GitLab CE/EE desde la versión 8.15, una vulnerabilidad de reenganche de DNS en Gitea Importer puede ser explotada por un atacante para desencadenar ataques de tipo Server Side Request Forgery (SSRF)

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)

Gitlab — Gitlab

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-39867",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 4.9,
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        "obtainAllPrivilege": false,
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  "published": "2021-10-05T13:15:07.977",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-918"
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  "descriptions": [
    {
      "lang": "en",
      "value": "In all versions of GitLab CE/EE since version 8.15, a DNS rebinding vulnerability in Gitea Importer may be exploited by an attacker to trigger Server Side Request Forgery (SSRF) attacks."
    },
    {
      "lang": "es",
      "value": "En todas las versiones de GitLab CE/EE desde la versión 8.15, una vulnerabilidad de reenganche de DNS en Gitea Importer puede ser explotada por un atacante para desencadenar ataques de tipo Server Side Request Forgery (SSRF)"
    }
  ],
  "lastModified": "2026-06-17T04:04:19.697",
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}