Incorrect Authorization in GitLab
Priority MEDIUM 53CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed a blocked Project Access Token to continue accessing private resources due to incorrect authorization enforcement.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00193 9th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed GitLab (GitLab): 18.10.7, 18.11.4, 19.0.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| GitLab | GitLab | 18.9 to before 18.10.7; 18.11 to before 18.11.4; 19.0 to before 19.0.1 | 18.10.7, 18.11.4, 19.0.1 | Patch available | CNA |
- GitLab VendorGitLab Affected 18.9 to before 18.10.7; 18.11 to before 18.11.4; 19.0 to before 19.0.1 Fixed in 18.10.7, 18.11.4, 19.0.1 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 18.9.0 to before 18.10.7 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 18.9.0 to before 18.10.7 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 18.11.0 to before 18.11.4 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 18.11.0 to before 18.11.4 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:19.0.0:*:*:*:community:*:*:* | 19.0.0 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:19.0.0:*:*:*:enterprise:*:*:* | 19.0.0 | Vulnerable | GitLab |
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 18.9.0 to before 18.10.7 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 18.9.0 to before 18.10.7 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 18.11.0 to before 18.11.4 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 18.11.0 to before 18.11.4 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:19.0.0:*:*:*:community:*:*:* Versions 19.0.0 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:19.0.0:*:*:*:enterprise:*:*:* Versions 19.0.0 Vulnerable ·GitLab
Remediation
- Fix · CNA GitLab (GitLab) Fixed in 18.10.7, 18.11.4, 19.0.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9807
- 2026-10-03 Alias added: GHSA-77hj-c554-4343
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-2026-9807 · CVE Program
- CVE-2026-9807 · NVD
- FIRST EPSS
- GHSA-77hj-c554-4343 · 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