CVE-2025-6853
chatchat-space Langchain-Chatchat Backend upload_temp_docs path traversal
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jun 29, 2025
- Updated
- Jun 30, 2025
- Reserved
- Jun 28, 2025
Description
A vulnerability classified as critical has been found in chatchat-space Langchain-Chatchat up to 0.3.1. This affects the function upload_temp_docs of the file /knowledge_base/upload_temp_docs of the component Backend. The manipulation of the argument flag leads to path traversal. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-22 Path Traversal
Affected Products
| Product | Versions |
|---|---|
Langchain-Chatchatchatchat-space |
|
References
- VDB-314325 | chatchat-space Langchain-Chatchat Backend upload_temp_docs path traversalvdb-entrytechnical-description
- VDB-314325 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #601155 | chatchat-space Langchain-Chatchat < v0.3.1 Path Traversal: '.../...//'third-party-advisory
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5352exploitissue-tracking
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.