The OpenAI-compatible file upload endpoint `/v1/files` in Langchain-Chatchat 0.3.0 is vulnerable to path traversal. An attacker can write files to arbitrary locations outside the `openai_files` directory by crafting malicious filenames.
Metrics
Affected Vendors & Products
References
History
Wed, 07 Oct 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Path Traversal in Langchain-Chatchat File Upload Endpoint |
Wed, 07 Oct 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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Fri, 02 Oct 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Chatchat-space
Chatchat-space langchain-chatchat |
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| Vendors & Products |
Chatchat-space
Chatchat-space langchain-chatchat |
Thu, 01 Oct 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Path Traversal in Langchain-Chatchat File Upload Endpoint | |
| Weaknesses | CWE-22 |
Thu, 01 Oct 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The OpenAI-compatible file upload endpoint `/v1/files` in Langchain-Chatchat 0.3.0 is vulnerable to path traversal. An attacker can write files to arbitrary locations outside the `openai_files` directory by crafting malicious filenames. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published: 2026-10-01T00:00:00.000Z
Updated: 2026-10-07T14:52:16.785Z
Reserved: 2026-06-08T00:00:00.000Z
Link: CVE-2026-51882
Updated: 2026-10-07T14:51:22.412Z
Status : Deferred
Published: 2026-10-01T22:17:03.003
Modified: 2026-10-07T15:17:22.240
Link: CVE-2026-51882
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