[PR #23629] [MERGED] fix: prevent path traversal via model name in Azure deployment URLs #27288

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GiteaMirror · 2026-04-20T06:58:58-05:00

GiteaMirror commented

2026-04-20 06:58:58 -05:00

📋 Pull Request Information

Original PR: https://github.com/open-webui/open-webui/pull/23629
Author: @Classic298
Created: 4/12/2026
Status: ✅ Merged
Merged: 4/12/2026
Merged by: @tjbck

Base: dev ← Head: fix/azure-model-path-injection

📝 Commits (1)

f30c8ab fix: prevent path traversal via model name in Azure deployment URLs

📊 Changes

1 file changed (+24 additions, -2 deletions)

View changed files

📝 backend/open_webui/routers/openai.py (+24 -2)

📄 Description

The model name from user input was interpolated directly into Azure deployment URL paths without validation. A user could send a model name like '../../management/foo' to traverse the URL path and hit unintended Azure endpoints with the admin's API key.

Adds _sanitize_model_for_url that rejects path separators and traversal sequences, and percent-encodes the name. Applied at convert_to_azure_payload (covers chat completions + proxy) and the responses endpoint's direct URL construction.

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_{🔄 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/23629 **Author:** [@Classic298](https://github.com/Classic298) **Created:** 4/12/2026 **Status:** ✅ Merged **Merged:** 4/12/2026 **Merged by:** [@tjbck](https://github.com/tjbck) **Base:** `dev` ← **Head:** `fix/azure-model-path-injection` --- ### 📝 Commits (1) - [`f30c8ab`](https://github.com/open-webui/open-webui/commit/f30c8abb023300629a23bccac6a8c917cc1c9d2a) fix: prevent path traversal via model name in Azure deployment URLs ### 📊 Changes **1 file changed** (+24 additions, -2 deletions) <details> <summary>View changed files</summary> 📝 `backend/open_webui/routers/openai.py` (+24 -2) </details> ### 📄 Description The model name from user input was interpolated directly into Azure deployment URL paths without validation. A user could send a model name like '../../management/foo' to traverse the URL path and hit unintended Azure endpoints with the admin's API key. Adds _sanitize_model_for_url that rejects path separators and traversal sequences, and percent-encodes the name. Applied at convert_to_azure_payload (covers chat completions + proxy) and the responses endpoint's direct URL construction. ### 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. > [!NOTE] > Deleting the CLA section will lead to immediate closure of your PR and it will not be merged in. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

GiteaMirror added the pull-request label 2026-04-20 06:58:58 -05:00

GiteaMirror closed this issue

2026-04-20 06:58:59 -05:00

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Reference: github-starred/open-webui#27288