Audio file path construction in backend/open_webui/routers/audio.py used hardcoded forward-slash f-strings like f'{file_dir}/{filename}', which produce mixed-separator paths on Windows (e.g. C:\...\uploads/xxxx.mp3), causing runtime failures for Windows users.
Fixed
Replace 6 hardcoded forward-slash path constructions in audio.py with os.path.join() for cross-platform compatibility
No logic changes — os is already imported and os.path.join() is already used elsewhere in this file. The existing path traversal security check is untouched.
By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.
## 📋 Pull Request Information
**Original PR:** https://github.com/open-webui/open-webui/pull/23456
**Author:** [@theshivam7](https://github.com/theshivam7)
**Created:** 4/6/2026
**Status:** ❌ Closed
**Base:** `dev` ← **Head:** `fix/windows-audio-path`
---
### 📝 Commits (10+)
- [`fe6783c`](https://github.com/open-webui/open-webui/commit/fe6783c16699911c7be17392596d579333fb110c) Merge pull request #19030 from open-webui/dev
- [`fc05e0a`](https://github.com/open-webui/open-webui/commit/fc05e0a6c5d39da60b603b4d520f800d6e36f748) Merge pull request #19405 from open-webui/dev
- [`e3faec6`](https://github.com/open-webui/open-webui/commit/e3faec62c58e3a83d89aa3df539feacefa125e0c) Merge pull request #19416 from open-webui/dev
- [`9899293`](https://github.com/open-webui/open-webui/commit/9899293f050ad50ae12024cbebee7e018acd851e) Merge pull request #19448 from open-webui/dev
- [`140605e`](https://github.com/open-webui/open-webui/commit/140605e660b8186a7d5c79fb3be6ffb147a2f498) Merge pull request #19462 from open-webui/dev
- [`6f1486f`](https://github.com/open-webui/open-webui/commit/6f1486ffd0cb288d0e21f41845361924e0d742b3) Merge pull request #19466 from open-webui/dev
- [`d95f533`](https://github.com/open-webui/open-webui/commit/d95f533214e3fe5beb5e41ec1f349940bc4c7043) Merge pull request #19729 from open-webui/dev
- [`a727153`](https://github.com/open-webui/open-webui/commit/a7271532f8a38da46785afcaa7e65f9a45e7d753) 0.6.43 (#20093)
- [`6adde20`](https://github.com/open-webui/open-webui/commit/6adde203cd292a9e3af9c64a2ae36b603fed096a) Merge pull request #20394 from open-webui/dev
- [`f9b0534`](https://github.com/open-webui/open-webui/commit/f9b0534e0c442631d1cb7205169588b9b6204179) Merge pull request #20522 from open-webui/dev
### 📊 Changes
**1 file changed** (+7 additions, -7 deletions)
<details>
<summary>View changed files</summary>
📝 `backend/open_webui/routers/audio.py` (+7 -7)
</details>
### 📄 Description
# Pull Request Checklist
- [x] **Target branch:** `dev`
- [x] **Description:** Provided below
- [x] **Testing:** Verified by code inspection — no logic changes, only path construction method changed
- [x] **Code review:** Self-reviewed
- [x] **Git Hygiene:** Single atomic change
---
# Changelog Entry
### Description
Fixes #23444
Audio file path construction in `backend/open_webui/routers/audio.py` used hardcoded forward-slash f-strings like `f'{file_dir}/{filename}'`, which produce mixed-separator paths on Windows (e.g. `C:\...\uploads/xxxx.mp3`), causing runtime failures for Windows users.
### Fixed
- Replace 6 hardcoded forward-slash path constructions in `audio.py` with `os.path.join()` for cross-platform compatibility
```python
# Before
transcript_file = f'{file_dir}/{id}.json'
file_dir = f'{CACHE_DIR}/audio/transcriptions'
file_path = f'{file_dir}/{filename}'
# After
transcript_file = os.path.join(file_dir, f'{id}.json')
file_dir = os.path.join(CACHE_DIR, 'audio', 'transcriptions')
file_path = os.path.join(file_dir, filename)
```
No logic changes — `os` is already imported and `os.path.join()` is already used elsewhere in this file. The existing path traversal security check is untouched.
---
### Additional Information
- Affects lines 585, 623, 692, 799, 984, 1162, 1164 of `audio.py`
- Pure mechanical fix — no new imports, no behavior change on non-Windows platforms
- Related issue: #23444
### Contributor License Agreement
- [x] By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](https://github.com/open-webui/open-webui/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms.
---
<sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
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📋 Pull Request Information
Original PR: https://github.com/open-webui/open-webui/pull/23456
Author: @theshivam7
Created: 4/6/2026
Status: ❌ Closed
Base:
dev← Head:fix/windows-audio-path📝 Commits (10+)
fe6783cMerge pull request #19030 from open-webui/devfc05e0aMerge pull request #19405 from open-webui/deve3faec6Merge pull request #19416 from open-webui/dev9899293Merge pull request #19448 from open-webui/dev140605eMerge pull request #19462 from open-webui/dev6f1486fMerge pull request #19466 from open-webui/devd95f533Merge pull request #19729 from open-webui/deva7271530.6.43 (#20093)6adde20Merge pull request #20394 from open-webui/devf9b0534Merge pull request #20522 from open-webui/dev📊 Changes
1 file changed (+7 additions, -7 deletions)
View changed files
📝
backend/open_webui/routers/audio.py(+7 -7)📄 Description
Pull Request Checklist
devChangelog Entry
Description
Fixes #23444
Audio file path construction in
backend/open_webui/routers/audio.pyused hardcoded forward-slash f-strings likef'{file_dir}/{filename}', which produce mixed-separator paths on Windows (e.g.C:\...\uploads/xxxx.mp3), causing runtime failures for Windows users.Fixed
audio.pywithos.path.join()for cross-platform compatibilityNo logic changes —
osis already imported andos.path.join()is already used elsewhere in this file. The existing path traversal security check is untouched.Additional Information
audio.pyContributor License Agreement
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.