CVE-2025-11447

HIGH

GitLab 11.0-18.3.4, 18.4.0-18.4.2, 18.5.0 - Unauthenticated Denial of Service via Crafted GraphQL JSON Payloads

Title source: llm
STIX 2.1

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.0 before 18.3.5, 18.4 before 18.4.3, and 18.5 before 18.5.1 that could have allowed an unauthenticated attacker to cause a denial of service condition by sending GraphQL requests with crafted JSON payloads.

References (3)

Core 3
Core References
Broken Link issue-tracking permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/574858
Permissions Required technical-description exploit permissions-required
https://hackerone.com/reports/3367019

Scores

CVSS v3 7.5
EPSS 0.0008
EPSS Percentile 22.4%
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-770
Status published
Products (2)
gitlab/gitlab 18.5.0 (2 CPE variants)
gitlab/gitlab 11.0.0 - 18.3.5 (2 CPE variants)
Published Oct 27, 2025
Tracked Since Feb 18, 2026