CVE-2021-39904

MEDIUM

4.3

CVSS Score

Published: November 4, 2021 at 11:13 PM UTC

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

1 product affected across 1 vendorGitLab

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Severity

MEDIUM4.3

Exploit prediction

EPSS 0.8%

Description

An 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

Affected

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

GitLab · GitLabmaven

95%

v < 14.2.6v < 14.3.4v < 14.4.113.1.0 ≤ v < 14.2.614.3.0 ≤ v < 14.3.4

Affected range stops below 14.2.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.3.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.4.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39904.json

x_refsource_MISCExploitIssue TrackingVendor Advisory

Source: [email protected]

https://gitlab.com/gitlab-org/gitlab/-/issues/295298

x_refsource_MISCPermissions RequiredThird Party Advisory

Source: [email protected]

https://hackerone.com/reports/1063420

CVSS

4.3MEDIUMGitLab

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-863

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