danny-avila LibreChat up to 0.8.1-rc1 OpenAPI server-side request forgery
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.0 | $0-$5k | 0.00 |
Summary
A vulnerability was found in danny-avila LibreChat up to 0.8.1-rc1. It has been rated as critical. This affects an unknown function of the component OpenAPI Handler. This manipulation causes server-side request forgery. This vulnerability is handled as CVE-2025-66201. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.
Details
A vulnerability was found in danny-avila LibreChat up to 0.8.1-rc1. It has been declared as critical. Affected by this vulnerability is an unknown function of the component OpenAPI Handler. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
LibreChat is a ChatGPT clone with additional features. Prior to version 0.8.1-rc2, LibreChat is vulnerable to Server-side Request Forgery (SSRF), by passing specially crafted OpenAPI specs to its "Actions" feature and making the LLM use those actions. It could be used by an authenticated user with access to this feature to access URLs only accessible to the LibreChat server (such as cloud metadata services, through which impersonation of the server might be possible). This issue has been patched in version 0.8.1-rc2.
The advisory is shared at github.com. This vulnerability is known as CVE-2025-66201 since 11/25/2025. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available.
Upgrading to version 0.8.1-rc2 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-199888). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Type
Vendor
Name
Version
Website
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 7.2VulDB Meta Temp Score: 7.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 8.1
NVD Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Server-side request forgeryCWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: LibreChat 0.8.1-rc2
Timeline
11/25/2025 CVE reserved11/29/2025 Advisory disclosed
11/29/2025 VulDB entry created
12/04/2025 VulDB entry last update
Sources
Product: github.comAdvisory: GHSA-7m2q-fjwr-5x8v
Status: Confirmed
CVE: CVE-2025-66201 (🔒)
GCVE (CVE): GCVE-0-2025-66201
GCVE (VulDB): GCVE-100-333781
EUVD: 🔒
Entry
Created: 11/29/2025 09:22Updated: 12/04/2025 06:38
Changes: 11/29/2025 09:22 (69), 11/29/2025 10:31 (1), 12/04/2025 06:38 (11)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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