CVE-2021-39945

LOW

2.7

CVSS Score

Published: December 13, 2021 at 03:47 PM UTC

Updated: June 17, 2026 at 04:04 AM UTC

1 product affected across 1 vendorGitLab

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Severity

LOW2.7

Exploit prediction

EPSS 0.9%

Description

Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an author of a Merge Request to approve the Merge Request even after having their project access revoked

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GitLab · GitLabmaven

95%

v < 14.3.6v < 14.4.4v < 14.5.214.4.0 ≤ v < 14.4.414.5.0 ≤ v < 14.5.29.4.0 ≤ v < 14.3.6

Affected range stops below 14.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.4.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.5.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39945.json

x_refsource_MISCBroken Link

Source: [email protected]

https://gitlab.com/gitlab-org/gitlab/-/issues/331675

x_refsource_MISCPermissions RequiredThird Party Advisory

Source: [email protected]

https://hackerone.com/reports/1198317

CVSS

2.7LOWGitLab

Attack Vector: NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-863

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