CVE-2025-6854: chatchat-space Langchain-Chatchat files path traversal

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-06-29 · updated 2026-06-17
Weakness: CWE-22

Description

A vulnerability classified as problematic was found in chatchat-space Langchain-Chatchat up to 0.3.1. This vulnerability affects unknown code of the file /v1/files?purpose=assistants. The manipulation leads to path traversal. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products

chatchat-space Langchain-Chatchat: through 0.3.1

References

https://github.com/chatchat-space/Langchain-Chatchat/issues/5353
https://vuldb.com/?ctiid.314326
https://vuldb.com/?id.314326
https://vuldb.com/?submit.601161

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