CVE-2026-7147
JoeCastrom mcp-chat-studio LLM Models API llm.js server-side request forgery
- State
- Published
- Severity
- 6.9 Medium
- Published
- Apr 27, 2026
- Updated
- Apr 27, 2026
- Reserved
- Apr 26, 2026
Description
A vulnerability was detected in JoeCastrom mcp-chat-studio up to 1.5.0. Affected by this issue is some unknown functionality of the file server/routes/llm.js of the component LLM Models API. Performing a manipulation of the argument req.query.base_url results in server-side request forgery. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-918 Server-Side Request Forgery
Affected Products
| Product | Versions |
|---|---|
mcp-chat-studioJoeCastrom |
|
References
- VDB-359746 | JoeCastrom mcp-chat-studio LLM Models API llm.js server-side request forgeryvdb-entrytechnical-description
- VDB-359746 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #801896 | JoeCastrom mcp-chat-studio 1.5.0 Server-Side Request Forgerythird-party-advisory
- https://github.com/JoeCastrom/mcp-chat-studio/issues/4exploitissue-tracking
- https://github.com/JoeCastrom/mcp-chat-studio/product
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