CVE-2021-39941
MEDIUM
5.3
CVSS Score
Published: December 13, 2021 at 03:48 PM UTC
Updated: June 17, 2026 at 04:04 AM UTC
1 product affected across 1 vendorGitLab
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Severity
MEDIUM5.3
Exploit prediction
EPSS 1%
Description
An information disclosure vulnerability in GitLab CE/EE versions 12.0 to 14.3.6, 14.4 to 14.4.4, and 14.5 to 14.5.2 allowed non-project members to see the default branch name for projects that restrict access to the repository to project members
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 14.3.6v < 14.4.4v < 14.5.212.0.0 ≤ 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 yetNo 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-2021-39941.jsonx_refsource_MISCBroken Link
Source: [email protected]
https://gitlab.com/gitlab-org/gitlab/-/issues/33864x_refsource_MISCPermissions RequiredThird Party Advisory
Source: [email protected]
https://hackerone.com/reports/706361CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-200
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