CVE-2025-6855 | chatchat-space Langchain-Chatchat up to 0.3.1 /v1/file flag path traversal (Issue 5354)

A vulnerability, which was classified as critical, has been found in chatchat-space Langchain-Chatchat up to 0.3.1. This issue affects some unknown processing of the file /v1/file. The manipulation of the argument flag leads to path traversal.

The identification of this vulnerability is CVE-2025-6855. Access to the local network is required for this attack to succeed. Furthermore, there is an exploit available.