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CVE-2021-39892

Estado: ModificadaMedia (4.3)—

En todas las versiones de GitLab CE/EE desde la versión 12.0, un usuario con bajos privilegios puede importar usuarios de proyectos en los que no presenta rol de mantenedor y revelar las direcciones de correo electrónico de esos usuarios

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-2021-39892",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@gitlab.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@gitlab.com",
      "affectedData": [
        {
          "vendor": "GitLab",
          "product": "GitLab",
          "versions": [
            {
              "status": "affected",
              "version": ">=12.0, <14.1.7"
            },
            {
              "status": "affected",
              "version": ">=14.2, <14.2.5"
            },
            {
              "status": "affected",
              "version": ">=14.3, <14.3.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-01-18T17:15:08.613",
  "references": [
    {
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39892.json",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@gitlab.com"
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/28440",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "cve@gitlab.com"
    },
    {
      "url": "https://hackerone.com/reports/542539",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@gitlab.com"
    },
    {
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39892.json",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/28440",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://hackerone.com/reports/542539",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In all versions of GitLab CE/EE since version 12.0, a lower privileged user can import users from projects that they don't have a maintainer role on and disclose email addresses of those users."
    },
    {
      "lang": "es",
      "value": "En todas las versiones de GitLab CE/EE desde la versión 12.0, un usuario con bajos privilegios puede importar usuarios de proyectos en los que no presenta rol de mantenedor y revelar las direcciones de correo electrónico de esos usuarios"
    }
  ],
  "lastModified": "2026-06-17T04:04:22.457",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "49B8ADCC-002C-4C60-86D8-06F5AE1CC123",
              "versionEndExcluding": "14.1.7",
              "versionStartIncluding": "12.0"
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E79A41C1-5B87-49E5-A916-256A2926F155",
              "versionEndExcluding": "14.1.7",
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            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
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              "matchCriteriaId": "A3352A07-9A5A-4CA9-B6F6-71BA3A1D4F9C",
              "versionEndExcluding": "14.2.5",
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            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CAAC78F3-28E1-4A0D-BA8A-78AE9393B988",
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              "vulnerable": true,
              "matchCriteriaId": "3E754C1F-3FB2-4387-8523-19896FDE7A14"
            },
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              "vulnerable": true,
              "matchCriteriaId": "ED0EDF4C-4350-476E-A6C4-C2FEFC2078D8"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@gitlab.com"
}