refactor: MPL proxy endpoint #6632
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mscolnick
previously approved these changes
Oct 1, 2025
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📝 Summary
This PR addresses an issue in the
/mpl/<port>/<route>endpoint that allowed unauthenticated access to internal services on any port.Changes Made
See previous behavior issue in tests/_cli/test_endpoint.py
Credits
Research and disclosure by @devgi and @acepace.
Played with a couple ways of doing this, but I think this is the best. I was unable to get any surface area when playing around. Added a unit test that fails in the exploitable case