PYSEC-2026-2443 dbt MCP Server: Unauthenticated OAuth Context Endpoint Leaks dbt Platform Tokens

Unauthenticated OAuth Context Endpoint Leaks dbt Platform Tokens Summary The local OAuth helper FastAPI server bundled with dbt-mcp exposes the GET /dbtplatformcontext endpoint without any form of authentication or host-origin validation. After a user completes the OAuth login flow against dbt...

PT-2026-51116

Name of the Vulnerable Software and Affected Versions dbt-mcp version 1.19.1 Description The local OAuth helper FastAPI server bundled with dbt-mcp exposes the 'GET /dbt platform context' endpoint without authentication or host-origin validation. After a user completes the OAuth login flow, this...