CVE-2026-1456
Allocation of Resources Without Limits or Throttling in GitLab
- State
- Published
- Severity
- 6.5 Medium
- Published
- Feb 11, 2026
- Updated
- Feb 11, 2026
- Reserved
- Jan 26, 2026
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an unauthenticated user to cause denial of service through CPU exhaustion by submitting specially crafted markdown files that trigger exponential processing in markdown preview.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | GitLab |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
GitLabGitLab |
|
References
- GitLab Issue #587688issue-trackingpermissions-required
- HackerOne Bug Bounty Report #3517928technical-descriptionexploitpermissions-required
- https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/
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