Inefficient Regular Expression Complexity in GitLab
Priority MEDIUM 62CWE-1333Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-1333.
Summary
An issue has been discovered in GitLab affecting all versions starting from 15.11 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. An authenticated user could trigger a denial of service when importing or cloning malicious content.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00812 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed GitLab (GitLab): 16.1.5, 16.2.5, 16.3.1
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 | 15.11 to before 16.1.5; 16.2 to before 16.2.5; 16.3 to before 16.3.1 | 16.1.5, 16.2.5, 16.3.1 | Patch available | CNA |
- GitLab VendorGitLab Affected 15.11 to before 16.1.5; 16.2 to before 16.2.5; 16.3 to before 16.3.1 Fixed in 16.1.5, 16.2.5, 16.3.1 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 15.11 to before 16.1.5 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 15.11 to before 16.1.5 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 16.2 to before 16.2.5 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 16.2 to before 16.2.5 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:16.3.0:*:*:*:community:*:*:* | 16.3.0 | Vulnerable | GitLab |
| cpe:2.3:a:gitlab:gitlab:16.3.0:*:*:*:enterprise:*:*:* | 16.3.0 | Vulnerable | GitLab |
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 15.11 to before 16.1.5 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 15.11 to before 16.1.5 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 16.2 to before 16.2.5 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 16.2 to before 16.2.5 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:16.3.0:*:*:*:community:*:*:* Versions 16.3.0 Vulnerable ·GitLab
- cpe:2.3:a:gitlab:gitlab:16.3.0:*:*:*:enterprise:*:*:* Versions 16.3.0 Vulnerable ·GitLab
Remediation
- Fix · CNA GitLab (GitLab) Fixed in 16.1.5, 16.2.5, 16.3.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
GitLab 16.1.5, 16.2.5, 16.3.1
9 records Highest priority Priority HIGH 2 HIGH, 4 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2023-04283 Allocation of Resources Without Limits or Throttling in GitLabPriority HIGH 72
- TI-2023-03651 Incorrect Execution-Assigned Permissions in GitLabPriority HIGH 65
- TI-2023-03002 Inefficient Regular Expression Complexity in GitLabPriority MEDIUM 62
Timeline
- 2026-10-02 Threatist record created from CVE-2023-3210
- 2026-10-03 Alias added: GHSA-qrrr-vqv8-9hcw
References
Exploit 1
Advisory 1
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-2023-3210 · CVE Program
- CVE-2023-3210 · NVD
- FIRST EPSS
- GHSA-qrrr-vqv8-9hcw · 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