CVE-2025-66201
BaseFortify
Publication date: 2025-11-29
Last updated on: 2025-12-03
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| librechat | librechat | to 0.8.1 (exc) |
| librechat | librechat | 0.8.1 |
| librechat | librechat | 0.8.1 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-918 | The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. |
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a Server-side Request Forgery (SSRF) in LibreChat versions prior to 0.8.1-rc2. An authenticated user with access to the "Actions" feature can pass specially crafted OpenAPI specifications that cause the system to make requests to internal URLs accessible only to the LibreChat server. This could allow the attacker to access sensitive internal resources, such as cloud metadata services, potentially enabling server impersonation.
How can this vulnerability impact me? :
The vulnerability can allow an authenticated user to access internal URLs and services that should be protected from external access. This could lead to unauthorized access to sensitive information, such as cloud metadata, which might be used to impersonate the server or escalate privileges, potentially compromising the security and integrity of the system.
What immediate steps should I take to mitigate this vulnerability?
Upgrade LibreChat to version 0.8.1-rc2 or later, as this version contains the patch that fixes the SSRF vulnerability in the Actions feature.