[BUG] Bash Tool Broken on Windows in Version 2.1.45

Status Fixed / completed
Reported on v2.1.45
Maintainer reply None cached
Activity 6 comments · opened Feb 17, 2026 · closed Feb 17, 2026

Preflight Checklist

  • [x] I have searched existing issues and this hasn't been reported yet
  • [x] This is a single bug report (please file separate reports for different bugs)
  • [x] I am using the latest version of Claude Code

What's Wrong?

When running bash commands on the latest version (2.1.45) in windows, the bash command fails with Exit Code 1 every time.

<img width="1092" height="473" alt="Image" src="https://github.com/user-attachments/assets/56a50e8f-7eee-4e1b-8ee2-e8700cc13d73" />

Downgrading to latest stable has resolved this:

<img width="371" height="250" alt="Image" src="https://github.com/user-attachments/assets/e96d92a4-d9af-48fd-b182-9194c37f152f" />

What Should Happen?

Bash tool should work

Error Messages/Logs

Exit Code 1 on all bash cmds.

Steps to Reproduce

Try to use bash on windows with latest stable.

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.45

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_

View original on GitHub ↗

6 Comments

SeanTalley · 6 months ago

I tested this on two completely different windows machines and encountered the same issue

github-actions[bot] · 6 months ago

Found 3 possible duplicate issues:

  1. https://github.com/anthropics/claude-code/issues/26413
  2. https://github.com/anthropics/claude-code/issues/18856
  3. https://github.com/anthropics/claude-code/issues/20354

This issue will be automatically closed as a duplicate in 3 days.

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TKBurner · 6 months ago

duplicate to my reported issue - https://github.com/anthropics/claude-code/issues/26413 - fine with keeping either open. (I have like 4 tabs open half on 45 half not and definately a regression on 45)

SeanTalley · 6 months ago

I searched but didn't see yours - close timing probably 🙂 we can close this one

tvancott42 · 6 months ago

Just opened one too: https://github.com/anthropics/claude-code/issues/26418

I'll comment on 26413. thanks guys

github-actions[bot] · 6 months ago

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.