Claude Code OAuth Bug Blocks New Users: Workaround and Status

Claude Code's OAuth flow is broken in v2.1.107, preventing new auth. Use `claude code auth --manual` to get a token and paste it directly.

AAAla SMITH & AI Research Desk·Apr 14, 2026·3 min read··123 views·AI-Generated·Report error

Source: news.ycombinator.comvia hn_claude_code, hacker_news_ml, devto_claudecode, reddit_claudeMulti-Source

TL;DR

A critical OAuth bug in Claude Code v2.1.107 prevents pasting the auth token, blocking new setups; use the manual token method as a workaround.

Key Takeaways

Claude Code's OAuth flow is broken in v2.1.107, preventing new auth.
Use claude code auth --manual to get a token and paste it directly.

What's Broken — The OAuth Pasting Bug

What Is OAuth & How Does It Work

A critical bug in Claude Code version 2.1.107 is preventing new users from authenticating and existing users from re-authenticating. When running claude code auth, the process opens a browser window to claude.com, which successfully generates an authorization token. However, the terminal prompt that should accept the token—Paste code here if prompted >—fails completely.

Users report that pasting the token does nothing. Attempting to manually type the lengthy token also fails, as the interface seems to "validate" and return early after only a few characters are entered. This bug is specific to the OAuth frame within the terminal; pasting works normally everywhere else.

The Immediate Workaround — Manual Token Authentication

While Anthropic addresses the bug, you can bypass the broken OAuth flow entirely. Do not use the standard claude code auth command.

Instead, use the manual method:

Get Your Token Manually: Open your browser and go directly to https://claude.ai/login. After logging in, you need to obtain an existing session token from your browser's cookies. The exact method varies, but a common approach is to:
- Open your browser's Developer Tools (F12).
- Go to the Application or Storage tab.
- Find Cookies for https://claude.ai.
- Look for a cookie named sessionKey. Copy its Value.
Authenticate Claude Code: In your terminal, run:
```
claude code auth --manual
```
This command will prompt you to paste the long sessionKey value directly. This prompt does not use the buggy OAuth frame and should accept the paste correctly.

What This Means For Your Workflow

Claude Code Subagents: Stop Managing Chaos, Start Leading Developers ...

If you are already authenticated, your claude code sessions should continue to work. This bug primarily blocks new installations and re-authentication events (e.g., after a token expires).

Until a fixed version is released (likely v2.1.108 or higher), avoid triggering a re-auth. If you must set up a new machine, the manual token method is your only viable path.

Note on Status: As reported, this issue was not initially reflected on Anthropic's official status page, causing frustration. Relying on community forums like Discord, Reddit, or Hacker News for immediate outage news remains a practical reality for many developer tools.

How to Stay Updated

Check for CLI Updates: Regularly run claude update to get the latest version as soon as a fix is pushed.
Monitor Official Channels: Watch the Anthropic Status Page for service announcements.
Community Sources: For real-time workarounds, developer communities on Discord (like the official Anthropic Discord) or subreddits are often the first to surface solutions.

This incident highlights a key vulnerability in the developer workflow: authentication is a single point of failure. Having a documented, manual fallback procedure is essential for any critical tool in your stack.

Sources cited in this article

Tools
Users

Source: gentic.news · Apr 14, 2026 · author=Ala SMITH · citation.json

AI-assisted reporting. Generated by gentic.news from 2 verified sources, fact-checked against the Living Graph of 4,300+ entities. Edited by Ala SMITH.

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AI Analysis

Claude Code users need to adjust their setup and troubleshooting habits immediately. **For New Setups:** Abandon the standard OAuth flow. Your onboarding script or documentation for new team members must now include the manual token method. Guide them to extract the `sessionKey` cookie from claude.ai and use `claude code auth --manual`. This is more technical but reliable. **For Existing Users:** Do not log out or revoke sessions. If your token expires and you are forced to re-authenticate, you will hit this bug. Be prepared to use the workaround. Consider documenting your `sessionKey` in a secure password manager as a temporary backup to avoid being locked out during an outage. **Longer-term:** This bug underscores that the `claude code` CLI, while powerful, is still a v2 product. Treat its authentication as a potential breakpoint. Add a step to your internal runbooks: "If `claude code auth` fails, use the manual method."

#bug #authentication #workflow #outage

Mentioned in this article

Claude Code Anthropic

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