CVE-2026-12774
BerriAI litellm MCP Server Connection Testing rest_endpoints.py _execute_with_mcp_client server-side request forgery
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jun 21, 2026
- Updated
- Jun 22, 2026
- Reserved
- Jun 20, 2026
Description
A security vulnerability has been detected in BerriAI litellm up to 1.82.2. Affected by this vulnerability is the function _execute_with_mcp_client of the file litellm/proxy/_experimental/mcp_server/rest_endpoints.py of the component MCP Server Connection Testing. The manipulation leads to server-side request forgery. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-918 Server-Side Request Forgery
Affected Products
| Product | Versions |
|---|---|
litellmBerriAI |
|
References
- VDB-372516 | BerriAI litellm MCP Server Connection Testing rest_endpoints.py _execute_with_mcp_client server-side request forgeryvdb-entrytechnical-description
- VDB-372516 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-12774 | CVE Analysis and Reportthird-party-advisory
- Submit #811285 | litellm <= 1.82.2 Server-Side Request Forgery (SSRF) (CWE-918)third-party-advisory
- https://gist.github.com/YLChen-007/256c8ff0750e298f89b6b287c90c2981exploit
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