Description (CNA)
A weakness has been identified in BerriAI litellm up to 1.59.8. Affected is the function UserAPIKeyAuth of the file litellm/proxy/_experimental/mcp_server/auth/user_api_key_auth_mcp.py of the component MCP Proxy. Executing a manipulation can lead to improper authentication. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| BerriAI / litellm | affected 1.59.0; affected 1.59.1; affected 1.59.2; affected 1.59.3; affected 1.59.4; affected 1.59.5; affected 1.59.6; affected 1.59.7; affected 1.59.8 |
CWE
CWE-287
References
- https://vuldb.com/vuln/372515
- https://vuldb.com/vuln/372515/cti
- https://vuldb.com/cve/CVE-2026-12773
- https://vuldb.com/submit/811282
- https://gist.github.com/YLChen-007/3cfaad10a69d7a15e4d4d458cb53309e
ADP enrichment
No English description supplied.
A flaw was found in BerriAI litellm, within its MCP Proxy component. A remote attacker could exploit an improper authentication vulnerability in the UserAPIKeyAuth function. This could allow unauthorized access, potentially compromising the confidentiality, integrity, and availability of data within the system.