CVE-2021-39875
Status: ModifiedMedium (5.3)—
In all versions of GitLab CE/EE since version 13.6, it is possible to see pending invitations of any public group or public project by visiting an API endpoint.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Base score: 5.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.17%
- Percentile among all scored CVEs: 66
- Score date: 10/8/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- NVD-CWE-Other
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39875.json
- https://gitlab.com/gitlab-org/gitlab/-/issues/290985
- https://hackerone.com/reports/1048259
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39875.json
- https://gitlab.com/gitlab-org/gitlab/-/issues/290985
- https://hackerone.com/reports/1048259
Raw JSON (NVD)
Show
{
"id": "CVE-2021-39875",
"cveTags": [],
"metrics": {
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{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
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"source": "cve@gitlab.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 1.4,
"exploitabilityScore": 3.9
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
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"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
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}
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},
"affected": [
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},
{
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},
{
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"version": ">=14.3, <14.3.1"
}
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}
],
"published": "2021-10-05T13:15:08.143",
"references": [
{
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39875.json",
"tags": [
"Vendor Advisory"
],
"source": "cve@gitlab.com"
},
{
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/290985",
"tags": [
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],
"source": "cve@gitlab.com"
},
{
"url": "https://hackerone.com/reports/1048259",
"tags": [
"Permissions Required",
"Third Party Advisory"
],
"source": "cve@gitlab.com"
},
{
"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39875.json",
"tags": [
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],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/290985",
"tags": [
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],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://hackerone.com/reports/1048259",
"tags": [
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],
"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 13.6, it is possible to see pending invitations of any public group or public project by visiting an API endpoint."
},
{
"lang": "es",
"value": "En todas las versiones de GitLab CE/EE desde la versión 13.6, es posible visualizar las invitaciones pendientes de cualquier grupo público o proyecto público al visitar un endpoint de la API"
}
],
"lastModified": "2026-06-17T04:04:20.580",
"configurations": [
{
"nodes": [
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"sourceIdentifier": "cve@gitlab.com"
}