CVE-2021-39916

MEDIUM

4.3

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

MEDIUM4.3

Exploit prediction

EPSS 0.8%

Description

Lack of an access control check in the External Status Check feature allowed any authenticated user to retrieve the configuration of any External Status Check in GitLab EE starting from 14.1 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2.

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 < 14.5.214.1.0 ≤ v < 14.3.614.4.0 ≤ v < 14.4.414.5.0 ≤ v < 14.5.2

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. What the record does show:

Patch and advisory references

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39916.json

References (3)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39916.json

x_refsource_MISCBroken Link

Source: [email protected]

https://gitlab.com/gitlab-org/gitlab/-/issues/343379

x_refsource_MISCPermissions RequiredThird Party Advisory

Source: [email protected]

https://hackerone.com/reports/1372216

CVSS

4.3MEDIUMGitLab

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-639

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