CVE-2021-39904

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Summary

CVECVE-2021-39904
StatePUBLISHED
AssignerGitLab
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-11-05 00:15:10 UTC
Updated2026-06-12 14:34:00 UTC
DescriptionAn Improper Access Control vulnerability in the GraphQL API in all versions of GitLab CE/EE starting from 13.1 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows a Merge Request creator to resolve discussions and apply suggestions after a project owner has locked the Merge Request

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

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

Problem Types: CWE-863 | Improper access control in GitLab

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
2.0[email protected]Primary4AV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:L/Au:S/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gitlab Gitlab All All All All
Application Gitlab Gitlab All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GitLab GitLab affected >=13.1, <14.2.6 Not specified
CNA GitLab GitLab affected >=14.3, <14.3.4 Not specified
CNA GitLab GitLab affected >=14.4, <14.4.1 Not specified

References

ReferenceSourceLinkTags
HackerOne af854a3a-2127-422b-91ae-364da2661108 hackerone.com Permissions Required, Third Party Advisory
Not Found af854a3a-2127-422b-91ae-364da2661108 gitlab.com Exploit, Issue Tracking, Vendor Advisory
2021/CVE-2021-39904.json · master · GitLab.org / cves · GitLab af854a3a-2127-422b-91ae-364da2661108 gitlab.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Thanks jimeno for reporting this vulnerability through our HackerOne bug bounty program (en)

Legacy QID Mappings

  • 376040 GitLab Multiple Security Vulnerabilities (gitlab release-14.2.6,14.3.4,14.4.1)
  • 690230 Free Berkeley Software Distribution (FreeBSD) Security Update for gitlab (33557582-3958-11ec-90ba-001b217b3468)

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