The knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal. An attacker can inject path traversal sequences (such as `..\`) into the `knowledge_base_name` parameter to write knowledge base content to arbitrary locations outside the configured knowledge base root directory.
Metrics
Affected Vendors & Products
References
History
Tue, 06 Oct 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Mon, 05 Oct 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Path Traversal in Langchain‑Chatchat Knowledge Base Creation and Upload |
Mon, 05 Oct 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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Thu, 01 Oct 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Path Traversal in Langchain‑Chatchat Knowledge Base Creation and Upload | |
| Weaknesses | CWE-22 |
Thu, 01 Oct 2026 23:15:00 +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 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal. An attacker can inject path traversal sequences (such as `..\`) into the `knowledge_base_name` parameter to write knowledge base content to arbitrary locations outside the configured knowledge base root directory. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published: 2026-10-01T00:00:00.000Z
Updated: 2026-10-05T18:36:38.045Z
Reserved: 2026-06-08T00:00:00.000Z
Link: CVE-2026-51883
Updated: 2026-10-05T18:36:25.605Z
Status : Deferred
Published: 2026-10-01T22:17:03.127
Modified: 2026-10-05T19:17:21.630
Link: CVE-2026-51883
No data.