macOS: Severe command latency caused by syspolicyd when Codex GUI is running #17516

What version of the Codex App are you using (From “About Codex” dialog)?

26.409.20454 (1462)

What subscription do you have?

Chatgpt pro

What platform is your computer?

Darwin 25.3.0 arm64 arm

What issue are you seeing?

After launching Codex GUI, execution of all non-system binaries becomes extremely slow or hangs completely.

System binaries (e.g., /bin/ls) may still work normally, but binaries outside system paths (e.g., /usr/local/bin, Homebrew tools) are significantly delayed or blocked.

What steps can reproduce the bug?

This behavior does not occur immediately after reboot, and is consistently triggered after opening Codex GUI.

What is the expected behavior?

No response

Additional information

Relevant Logs

log stream --style compact --predicate 'process == "syspolicyd" || process == "trustd"'
Produces repeated logs such as:
syspolicyd: dispatch_mig_server returned 268435459 syspolicyd: <private> with PID XXXXX violates validation category policy syspolicyd: SecKeyVerifySignature syspolicyd: SecTrustEvaluateIfNecessary trustd: SecKeyVerifySignature
These logs appear continuously with rapidly changing PIDs.

<img width="1757" height="658" alt="Image" src="https://github.com/user-attachments/assets/bc0108f3-67ab-4ab9-b7cb-4c9ea60cd35a" /
After launching Codex GUI, syspolicyd usage becomes extremely high and does not return to normal even after the Codex process is terminated.