CVE-2025-1299
📋 TL;DR
This vulnerability allows unauthorized users to read deployment job logs in GitLab by sending specially crafted requests. It affects GitLab Community Edition (CE) and Enterprise Edition (EE) installations running vulnerable versions. Attackers could potentially access sensitive information from deployment logs without authentication.
💻 Affected Systems
- GitLab Community Edition
- GitLab Enterprise Edition
📦 What is this software?
Gitlab by Gitlab
GitLab is a complete DevOps platform providing source code management, CI/CD pipelines, security scanning, container registry, and collaboration tools used by millions of developers and thousands of enterprises worldwide. As both a cloud-hosted SaaS offering (GitLab.com) and self-managed software, G...
Learn more about Gitlab →Gitlab by Gitlab
GitLab is a complete DevOps platform providing source code management, CI/CD pipelines, security scanning, container registry, and collaboration tools used by millions of developers and thousands of enterprises worldwide. As both a cloud-hosted SaaS offering (GitLab.com) and self-managed software, G...
Learn more about Gitlab →Gitlab by Gitlab
GitLab is a complete DevOps platform providing source code management, CI/CD pipelines, security scanning, container registry, and collaboration tools used by millions of developers and thousands of enterprises worldwide. As both a cloud-hosted SaaS offering (GitLab.com) and self-managed software, G...
Learn more about Gitlab →Gitlab by Gitlab
GitLab is a complete DevOps platform providing source code management, CI/CD pipelines, security scanning, container registry, and collaboration tools used by millions of developers and thousands of enterprises worldwide. As both a cloud-hosted SaaS offering (GitLab.com) and self-managed software, G...
Learn more about Gitlab →Gitlab by Gitlab
GitLab is a complete DevOps platform providing source code management, CI/CD pipelines, security scanning, container registry, and collaboration tools used by millions of developers and thousands of enterprises worldwide. As both a cloud-hosted SaaS offering (GitLab.com) and self-managed software, G...
Learn more about Gitlab →Gitlab by Gitlab
GitLab is a complete DevOps platform providing source code management, CI/CD pipelines, security scanning, container registry, and collaboration tools used by millions of developers and thousands of enterprises worldwide. As both a cloud-hosted SaaS offering (GitLab.com) and self-managed software, G...
Learn more about Gitlab →⚠️ Risk & Real-World Impact
Worst Case
Unauthenticated attackers could access sensitive deployment logs containing credentials, API keys, configuration details, or other secrets that developers might have logged during deployment processes.
Likely Case
Unauthorized users accessing deployment logs that may contain non-critical but sensitive operational information, potentially enabling further reconnaissance or targeted attacks.
If Mitigated
With proper access controls and monitoring, impact is limited to potential information disclosure of non-sensitive deployment data.
🎯 Exploit Status
The vulnerability requires sending crafted requests but appears to be straightforward to exploit based on the description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 18.0.5, 18.1.3, or 18.2.1
Vendor Advisory: https://gitlab.com/gitlab-org/gitlab/-/issues/519696
Restart Required: Yes
Instructions:
1. Backup your GitLab instance. 2. Update to GitLab 18.0.5, 18.1.3, or 18.2.1 depending on your current version. 3. Restart GitLab services. 4. Verify the update was successful.
🔧 Temporary Workarounds
Restrict access to deployment job endpoints
allImplement network-level restrictions to limit access to GitLab deployment job endpoints to authorized users only.
Disable deployment job logging
allTemporarily disable or limit deployment job logging until patching can be completed.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate GitLab instances from untrusted networks
- Enable enhanced logging and monitoring for unauthorized access attempts to deployment job endpoints
🔍 How to Verify
Check if Vulnerable:
Check your GitLab version using the admin interface or by running 'gitlab-rake gitlab:env:info' on the server.Check Version:
gitlab-rake gitlab:env:info | grep -i versionVerify Fix Applied:
Verify the GitLab version is 18.0.5, 18.1.3, or 18.2.1 or later, and test that unauthorized users cannot access deployment job logs.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to deployment job endpoints
- Unusual patterns of requests to /api/v4/projects/*/jobs/*/trace endpoint
Network Indicators:
- Unusual traffic patterns to GitLab deployment job endpoints from unauthorized IPs
SIEM Query:
source="gitlab" AND (uri_path="/api/v4/projects/*/jobs/*/trace" OR uri_path="/api/v4/jobs/*/trace") AND response_status=200 AND user="anonymous"