Files
hermes-agent/tools
teknium1 d34cc4093a fix(mcp): per-flow callback waiters so concurrent OAuth flows cannot cross ports
_wait_for_callback still read the legacy module-level _oauth_port, so
with two concurrent OAuth flows, flow A's callback wait bound flow B's
port while A's redirect URI pointed at A's port — the callback-side
half of the cross-flow collision that #65622 fixed on the redirect
side. _make_callback_waiter(port) closes over each flow's resolved
port; both provider construction sites (build_oauth_auth and
MCPOAuthManager._build_provider) now wire per-flow waiters. The legacy
_wait_for_callback delegates for backwards compatibility.

Direction credit to @LeonSGP43 (#34280) and the #34260 analysis.
2026-07-16 07:11:21 -07:00
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