OpenAI Authorization 403 Error #7900

Activity

1. syw2014

   added

   bugSomething isn't workingSomething isn't working

   on Jan 12, 2026
2. github-actions

   assigned

   rekram1-node

   on Jan 12, 2026
3. github-actions commented on Jan 12, 2026

   

   github-actionsBot

   on Jan 12, 2026 – with GitHub Actions

   Contributor

   More actions

   This issue might be a duplicate of existing issues. Please check:

   • . #7770: openai auth after v1.1.11 fatal error - similar OpenAI authorization issues after recent updates
   • OpenAI auth had fatal error after successful auth #7565: OpenAI auth had fatal error after successful auth - same fatal error pattern when completing OpenAI authentication
   • Bug: Cannot Connect ChatGPT Plus Subscription with OpenCode 1.1.12 #7745: Bug: Cannot Connect ChatGPT Plus Subscription with OpenCode 1.1.12 - ChatGPT Plus connection issues
   • Token refresh failed: 403 failed with github copilot #6083: Token refresh failed: 403 failed with github copilot - similar 403 token exchange failures (though with Copilot provider)

   Feel free to ignore if none of these address your specific case.
4. zizhen01 commented on Jan 12, 2026

   

   zizhen01

   on Jan 12, 2026

   More actions

   Same issue here

   `◑ Waiting for authorization..Error: Unexpected error, check log file at /Users/xx/.local/share/opencode/log/2026-01-12T025639.log for more details

   error: Token exchange failed: 403
   at exchangeCodeForTokens (src/plugin/codex.ts:121:15)
   at processTicksAndRejections (native:7:39)

   ■ Canceled`
5. syw2014 commented on Jan 12, 2026

   

   syw2014

   on Jan 12, 2026

   Author

   More actions

   Same issue here

   `◑ Waiting for authorization..Error: Unexpected error, check log file at /Users/xx/.local/share/opencode/log/2026-01-12T025639.log for more details

   error: Token exchange failed: 403 at exchangeCodeForTokens (src/plugin/codex.ts:121:15) at processTicksAndRejections (native:7:39)

   ■ Canceled`
   I retried the authentication and found the root cause.
   The issue was related to the VPN routing. With split-tunneling enabled, the browser authorization succeeded, but the CLI token exchange failed with 403.
   After switching the VPN to global mode with enhanced/TUN mode enabled, the OAuth flow completed successfully.

   👍React with 👍6Reacted by zizhen01, zerogog, ShiBoyu, tao-py, DylanQiao and Daniil Davletov
6. syw2014

   closed this as completedon Jan 12, 2026
7. zerogog commented on Jan 13, 2026

   

   zerogog

   on Jan 13, 2026

   More actions

   403 means forbidden. If you not use proxy, use it. If you used proxy, switch it. Same for codex cli.
8. shiboyu1999 commented on Jan 19, 2026

   

   shiboyu1999

   on Jan 19, 2026

   More actions

   Same issue here
   ◑ Waiting for authorization..Error: Unexpected error, check log file at /Users/xx/.local/share/opencode/log/2026-01-12T025639.log for more details error: Token exchange failed: 403 at exchangeCodeForTokens (src/plugin/codex.ts:121:15) at processTicksAndRejections (native:7:39) ■ Canceled
   I retried the authentication and found the root cause.
   The issue was related to the VPN routing. With split-tunneling enabled, the browser authorization succeeded, but the CLI token exchange failed with 403.
   After switching the VPN to global mode with enhanced/TUN mode enabled, the OAuth flow completed successfully.

   My hero！

   ❤️React with ❤️5Reacted by Jerry.Shi, DylanQiao, 陈润杰（Chen Runjie）, sltc-shihh and Daniil Davletov