REDHAT-BUG-2491112: High severity BerriAI LiteLLM vulnerability

Published Jun 21, 2026
·
Updated

A weakness has been identified in BerriAI litellm up to 1.59.8. Affected is the function UserAPIKeyAuth of the file litellm/proxy/experimental/mcpserver/auth/userapikeyauthmcp.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 Software

1 affected component
BerriAI LiteLLM<=1.59.8

Event History

Jun 21, 2026
Data Sourced
via Red Hat·04:01 AM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2491112?

The severity of REDHAT-BUG-2491112 is classified as high, with a score of 7.

2

How do I fix REDHAT-BUG-2491112?

To fix REDHAT-BUG-2491112, update BerriAI LiteLLM to a version later than 1.59.8.

3

What component is affected by REDHAT-BUG-2491112?

The component affected by REDHAT-BUG-2491112 is the MCP Proxy within BerriAI LiteLLM.

4

What function is vulnerable in REDHAT-BUG-2491112?

The function vulnerable in REDHAT-BUG-2491112 is UserAPIKeyAuth located in the file user_api_key_auth_mcp.py.

5

What type of security issue is described in REDHAT-BUG-2491112?

REDHAT-BUG-2491112 describes an improper authentication vulnerability that can be exploited by executing manipulation.

Contact

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