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.
References (4)
Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.314325
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.314325
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.601155
Exploit, Issue Tracking exploit
issue-tracking
https://github.com/chatchat-space/Langchain-Chatchat/issues/5352
Scores
CVSS v3
6.3
EPSS
0.0063
EPSS Percentile
70.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (2)
chatchat-space/langchain-chatchat
< 0.3.1
pypi/langchain-chatchat
0PyPI
Published
Jun 29, 2025
Tracked Since
Feb 18, 2026