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stdio can remain live/ready while all MCP commands fail with client_internal 502

Status: Open.

#46 In openai/tunnel-client;

· AxelHu opened on Aug 25, 2026

tunnel-client v0.0.12 Linux AMD64 binary reported vulnerable to CVE-2026-39821 (Critical)

Status: Open.

#44 In openai/tunnel-client;

· SeanWritesWrongs opened on Aug 23, 2026

tunnel-client v0.0.12 is flagged as malicious by some antivirus engines

Status: Open.

#43 In openai/tunnel-client;

· aferraromedina opened on Aug 21, 2026

Tool definitions may remain stale until manual refresh

Status: Open.

#42 In openai/tunnel-client;

· Maicon-Moreira opened on Aug 21, 2026

ChatGPT no-auth tunnel plugin immediately enters reconnect loop

Status: Open.

#41 In openai/tunnel-client;

· channico opened on Aug 20, 2026

tunnel-client v0.0.11 probes MCP 2026-07-28 server with retired initialize method

Status: Open.

#40 In openai/tunnel-client;

· presta-modulShopmkCZ opened on Aug 12, 2026

macOS arm64 v0.0.11 is rejected by Gatekeeper before startup

Status: Open.

#39 In openai/tunnel-client;

· watflux opened on Aug 12, 2026

ChatGPT tunnel-backed MCP connector creation performs SSE GET probe and fails with 404

Status: Open.

#35 In openai/tunnel-client;

· yoruuuchan opened on Aug 10, 2026

/readyz wedges at 503 permanently when OAuth discovery times out on boot

Status: Open.

#33 In openai/tunnel-client;

· gym-cmd opened on Aug 7, 2026

OAuth endpoints (/oauth/authorize and /oauth/token) are not accessible through Secure MCP Tunnel

Status: Open.

#23 In openai/tunnel-client;

· xlingsy opened on Jun 29, 2026