Incorrect authorization in GitLab
Priority MEDIUM 45CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.
Summary
GitLab CE/EE version 13.3 prior to 13.3.4 was vulnerable to an OAuth authorization scope change without user consent in the middle of the authorization flow.
Why it matters now
EPSS 0.01257 69th percentileScored 2026-11-07
Fix Fixed GitLab (GitLab): 13.3.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| GitLab | GitLab | 13.3 to before 13.3.4 | 13.3.4 | Patch available | CNA |
- GitLab VendorGitLab Affected 13.3 to before 13.3.4 Fixed in 13.3.4 Patch available CNA
Remediation
- Fix · CNA GitLab (GitLab) Fixed in 13.3.4
Timeline
- 2026-10-02 Threatist record created from CVE-2020-13300
- 2026-10-03 Alias added: GHSA-69vx-f9hq-xc87
References
More Gitlab vulnerabilities
- TI-2026-71508 Integer overflow in GitLab allows code execution on the server KEVCVSS 3.1CRITICAL 10.0
- TI-2026-58817 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in GitLab KEVCVSS 3.1CRITICAL 10.0
- TI-2023-06425 Weak Password Recovery Mechanism for Forgotten Password in GitLab KEVCVSS 3.1CRITICAL 10.0
- TI-2021-05191 Code injection in GitLab KEVCVSS 3.1CRITICAL 10.0
- TI-2021-05161 Server-side request forgery in GitLab KEVCVSS 3.1CRITICAL 9.8
- TI-2022-02763 Injection in GitLab CVSS 3.1CRITICAL 9.9
Sources
- CVE-2020-13300 · CVE Program
- CVE-2020-13300 · NVD
- FIRST EPSS
- GHSA-69vx-f9hq-xc87 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences