tritonclient[grpc] is pinned to protobuf 5.x

[blakehawkins]

Hi folks,

(Thanks for open-sourcing this project!)

The python client is currently pinned to an older version of protobuf:

https://github.com/triton-inference-server/client/blob/main/src/python/library/requirements/requirements_grpc.txt#L30

protobuf 6.x (https://pypi.org/project/protobuf/) is quite stable

I'm using protobuf 6 for internal services and would love to switch from tritonclient http to grpc but from past experience, protobuf version mismatching can be quite risky due to subtle runtime differences.

Is a protobuf6 release of triton client for python on the horizon?

Thanks for reading

[guyuankan]

I encountered the same problem. And it is very important to note that protobuf 5.26.1 is vulnerable. https://www.cvedetails.com/cve/CVE-2025-4565/