Improper Resolution of Path Equivalence in GitLab
Priority LOW 37CWE-41Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00407 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed GitLab (GitLab): 18.10.4, 18.11.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | 18.10 to before 18.10.4; 18.11 to before 18.11.1 | 18.10.4, 18.11.1 | Patch available | CNA |
- GitLab VendorGitLab Affected 18.10 to before 18.10.4; 18.11 to before 18.11.1 Fixed in 18.10.4, 18.11.1 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 18.10.0 to before 18.10.4 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 18.10.0 to before 18.10.4 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:community:*:*:* | 18.11.0 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:enterprise:*:*:* | 18.11.0 | Vulnerable | GitLab |
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 18.10.0 to before 18.10.4 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 18.10.0 to before 18.10.4 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:community:*:*:* Versions 18.11.0 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:enterprise:*:*:* Versions 18.11.0 Vulnerable ·GitLab
Remediation
- Fix · CNA GitLab (GitLab) Fixed in 18.10.4, 18.11.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-5816
- 2026-10-03 Alias added: GHSA-gj6x-vqpx-4p3c
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-2026-5816 · CVE Program
- CVE-2026-5816 · NVD
- FIRST EPSS
- GHSA-gj6x-vqpx-4p3c · 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