CVE-2021-39889

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Published Oct 5, 2021 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Description

In all versions of GitLab EE since version 14.1, due to an insecure direct object reference vulnerability, an endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected branch.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

GitLab

GitLab

affected

Version	Status	Constraints
`>=14.1, <14.1.7`	affected	—
`>=14.2, <14.2.5`	affected	—
`>=14.3, <14.3.1`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-26245	In all versions of GitLab EE since version 14.1, due to an insecure direct object reference vulnerability, an endpoint may reveal the protected branch name to a malicious user who makes a crafted API call with the ID of the protected branch.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.833% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39889.json
https://gitlab.com/gitlab-org/gitlab/-/issues/338062
https://hackerone.com/reports/1294017

History

No history.

Subscriptions

Gitlab Gitlab

Weaknesses

CWE-639

Sources

CVE record Updated: Aug 4, 2024, 2:20 AM

Status: PUBLISHED
Assigner: GitLab
Published: Oct 5, 2021, 1:43 PM
Updated: Aug 4, 2024, 2:20 AM
Reserved: Aug 23, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:04 AM

Status: Modified
Published: Oct 5, 2021, 2:15 PM
Modified: Jun 17, 2026, 4:04 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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