CVE-2025-14869

HIGH

Improper Validation of Specified Quantity in Input in GitLab

Title source: cna

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 payloads on certain API endpoints.

References (3)

Core 3

Core References

Exploit technical-description exploit permissions-required

HackerOne Bug Bounty Report #3447146

https://hackerone.com/reports/3447146

https://gitlab.com/gitlab-org/gitlab/-/work_items/584489

https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/

Scores

CVSS v3 7.5

EPSS 0.0003

EPSS Percentile 10.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-1284

Status published

Products (4)

GitLab/GitLab 18.10 - 18.10.6

GitLab/GitLab 18.11 - 18.11.3

GitLab/GitLab 18.5 - 18.9.7

gitlab/gitlab 18.5.0 - 18.9.7 (2 CPE variants)

Published May 14, 2026

Tracked Since May 14, 2026