# CVE-2023-1555

## Summary

- **CVE ID:** CVE-2023-1555
- **Severity:** LOW
- **CVSS Score:** 2.7 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N)
- **CWE:** CWE-262
- **Published:** Sep 1, 2023
- **Last Modified:** Mar 13, 2026

## Description

An issue has been discovered in GitLab affecting all versions starting from 15.2 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A namespace-level banned user can access the API.

## Affected Products

- GitLab — GitLab (15.2)
- GitLab — GitLab (16.2)
- GitLab — GitLab (16.3)

## References

- [CNA](https://gitlab.com/gitlab-org/gitlab/-/issues/398587)
- [CNA](https://hackerone.com/reports/1911908)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.06%
- **EPSS Percentile:** 19.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._