PT-2026-40855 · Gitlab · Gitlab

Published 2026-05-14 · Updated 2026-05-14 · CVE-2025-14870

NVD

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Exploit

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2025-14870

Affected Products

Gitlab

References · 4

• 🔥 https://hackerone.com/reports/3446641 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-14870 · Security Note
• https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released · Note
• https://gitlab.com/gitlab-org/gitlab/-/work_items/584490 · Note