Back to Database
Status published
Medium
CVE-2021-39902
Incorrect Authorization in GitLab CE/EE 13.4 or above allows a...
Vulnerability Description
Incorrect Authorization in GitLab CE/EE 13.4 or above allows a user with guest membership in a project to modify the severity of an incident.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-39902
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Thanks @cradlr for reporting this vulnerability through our HackerOne bug bounty program
References
More from GitLab
View All →CVE-2025-9958
Insertion of Sensitive Information Into Sent Data in GitLab
High
7.7
CVE-2025-9957
Incorrect Authorization in GitLab
Low
2.7
CVE-2025-9825
Missing Authorization in GitLab
Medium
5
CVE-2025-9642
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
High
8.7
CVE-2025-9484
Missing Authorization in GitLab
Medium
4.3
Affected Vendor
GitLab
View all reports →Affected Software
GitLab
Vulnerable Versions:
>=13.4, <14.2.6, >=14.3, <14.3.4, >=14.4, <14.4.1
Timeline
Official Publish:
November 4th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.