An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade gitlab-ce | Dec 10, 2025 | Jun 30, 2023 |
| Gitlab Gitlab | — | Upgrade Gitlab to the latest version | Apr 22, 2025 | Jul 13, 2023 |
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