CVE-2025-6855

MEDIUM

Langchain-Chatchat <0.3.1 - Path Traversal

Title source: llm
STIX 2.1

Description

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 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.314327
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.314327
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.601162
Exploit, Issue Tracking, Vendor Advisory exploit issue-tracking
https://github.com/chatchat-space/Langchain-Chatchat/issues/5354

Scores

CVSS v3 5.5
EPSS 0.0069
EPSS Percentile 71.9%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/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