# CVE-2025-14870

## Summary

- **CVE ID:** CVE-2025-14870
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-770
- **Published:** May 14, 2026
- **Last Modified:** May 14, 2026

## Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.5 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by sending specially crafted JSON payloads due to insufficient input validation.

## Affected Products

- GitLab — GitLab (18.5)
- GitLab — GitLab (18.10)
- GitLab — GitLab (18.11)

## References

- [CNA](https://hackerone.com/reports/3446641)
- [CNA](https://gitlab.com/gitlab-org/gitlab/-/work_items/584490)
- [CNA](https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.34%
- **EPSS Percentile:** 27.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._