Vulnerability-Lookup

FKIE_CVE-2021-39892

Vulnerability from fkie_nvd - Published: 2022-01-18 17:15 - Updated: 2026-06-17 04:04

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Summary

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.

References

URL	Tags
cve@gitlab.com	https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39892.json	Vendor Advisory
cve@gitlab.com	https://gitlab.com/gitlab-org/gitlab/-/issues/28440	Exploit, Vendor Advisory
cve@gitlab.com	https://hackerone.com/reports/542539	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39892.json	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://gitlab.com/gitlab-org/gitlab/-/issues/28440	Exploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://hackerone.com/reports/542539	Third Party Advisory

Impacted products

Vendor	Product	Version
gitlab	gitlab	*
gitlab	gitlab	*
gitlab	gitlab	*
gitlab	gitlab	*
gitlab	gitlab	14.3.0
gitlab	gitlab	14.3.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "GitLab",
          "vendor": "GitLab",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e=12.0, \u003c14.1.7"
            },
            {
              "status": "affected",
              "version": "\u003e=14.2, \u003c14.2.5"
            },
            {
              "status": "affected",
              "version": "\u003e=14.3, \u003c14.3.1"
            }
          ]
        }
      ],
      "source": "cve@gitlab.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "matchCriteriaId": "49B8ADCC-002C-4C60-86D8-06F5AE1CC123",
              "versionEndExcluding": "14.1.7",
              "versionStartIncluding": "12.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "E79A41C1-5B87-49E5-A916-256A2926F155",
              "versionEndExcluding": "14.1.7",
              "versionStartIncluding": "12.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "matchCriteriaId": "A3352A07-9A5A-4CA9-B6F6-71BA3A1D4F9C",
              "versionEndExcluding": "14.2.5",
              "versionStartIncluding": "14.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "CAAC78F3-28E1-4A0D-BA8A-78AE9393B988",
              "versionEndExcluding": "14.2.5",
              "versionStartIncluding": "14.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:14.3.0:*:*:*:community:*:*:*",
              "matchCriteriaId": "3E754C1F-3FB2-4387-8523-19896FDE7A14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:gitlab:gitlab:14.3.0:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "ED0EDF4C-4350-476E-A6C4-C2FEFC2078D8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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\u0027t 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 versi\u00f3n 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 electr\u00f3nico de esos usuarios"
    }
  ],
  "id": "CVE-2021-39892",
  "lastModified": "2026-06-17T04:04:22.457",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "cve@gitlab.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-01-18T17:15:08.613",
  "references": [
    {
      "source": "cve@gitlab.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39892.json"
    },
    {
      "source": "cve@gitlab.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/28440"
    },
    {
      "source": "cve@gitlab.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://hackerone.com/reports/542539"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39892.json"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/28440"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://hackerone.com/reports/542539"
    }
  ],
  "sourceIdentifier": "cve@gitlab.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-39892 (GCVE-0-2021-39892)

Vulnerability from cvelistv5 – Published: 2022-01-18 16:52 – Updated: 2024-08-04 02:20

Summary

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.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE

Improper authorization in GitLab

Assigner

GitLab mitre root Scorecard

References

3 references

URL	Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/28440	x_refsource_MISC
https://hackerone.com/reports/542539	x_refsource_MISC
https://gitlab.com/gitlab-org/cves/-/blob/master/…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
GitLab	GitLab	Affected: >=12.0, <14.1.7 Affected: >=14.2, <14.2.5 Affected: >=14.3, <14.3.1

Credits

Thanks @ashish_r_padelkar for reporting this vulnerability through our HackerOne bug bounty program

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T02:20:33.593Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/28440"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/542539"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39892.json"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "GitLab",
          "vendor": "GitLab",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e=12.0, \u003c14.1.7"
            },
            {
              "status": "affected",
              "version": "\u003e=14.2, \u003c14.2.5"
            },
            {
              "status": "affected",
              "version": "\u003e=14.3, \u003c14.3.1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Thanks @ashish_r_padelkar for reporting this vulnerability through our HackerOne bug bounty program"
        }
      ],
      "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\u0027t have a maintainer role on and disclose email addresses of those users."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
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      "problemTypes": [
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        "shortName": "GitLab"
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      "references": [
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        },
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          "tags": [
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          ],
          "url": "https://hackerone.com/reports/542539"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39892.json"
        }
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          "ASSIGNER": "cve@gitlab.com",
          "ID": "CVE-2021-39892",
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        },
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            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "GitLab",
                      "version": {
                        "version_data": [
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                            "version_value": "\u003e=12.0, \u003c14.1.7"
                          },
                          {
                            "version_value": "\u003e=14.2, \u003c14.2.5"
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                "vendor_name": "GitLab"
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        },
        "credit": [
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            },
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    "dateReserved": "2021-08-23T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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FKIE_CVE-2021-39892

CVE-2021-39892 (GCVE-0-2021-39892)

Tags

Sightings

Nomenclature

Related by attack behaviour