Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2025-8014: Denial of Service Vulnerability in GraphQL Endpoints in Gitlab EE/CE

Overview

CVE-2025-8014 is a severe cybersecurity vulnerability affecting GraphQL endpoints in Gitlab EE/CE. It affects all versions from 11.10 prior to 18.2.7, 18.3 prior to 18.3.3, and 18.4 prior to 18.4.1. This vulnerability potentially allows unauthenticated users to bypass query complexity limits leading to resource exhaustion and service disruption, which increases the risk of system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-8014
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System Compromise or Data Leakage

Affected Products

Ameeba Chat Icon Share secrets securely

Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.

Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.

  • • Encrypted identity
  • • Private Spaces for organizations and teams
  • • End-to-end encrypted chat, calls, files, and notes
  • • Sensitive AI work and protected collaboration
  • • Built for information that cannot leak

Our mission is to secure human work alongside AI.

Product | Affected Versions

Gitlab EE | 11.10 to 18.2.6, 18.3 to 18.3.2, 18.4 to 18.4.0
Gitlab CE | 11.10 to 18.2.6, 18.3 to 18.3.2, 18.4 to 18.4.0

How the Exploit Works

The exploit works by taking advantage of the GraphQL endpoints in Gitlab EE/CE. An unauthenticated user can send overly complex queries that bypass the system’s query complexity limits. This leads to resource exhaustion as the system attempts to process these queries, causing service disruption and potentially allowing for further attacks on the system.

Conceptual Example Code

Consider the following example of a malicious GraphQL query that could exploit this vulnerability:

POST /api/graphql HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"query": "{ user(id: '1') { posts { title, content, comments { text } } } }"
}

In this example, the query is requesting a large amount of data (all posts, their titles, contents, and all associated comments) for a single user. The sheer complexity and size of this query can overwhelm the system, leading to a denial of service.

Want to discuss this further? Join the Ameeba Cybersecurity Group Chat.

Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.
Ameeba Chat