---
id: CVE-2025-6854
aliases:
  - GHSA-8v8h-4pjx-rg73
  - PYSEC-2026-1511
title: Langchain-Chatchat vulnerable to path traversal
summary: Langchain-Chatchat vulnerable to path traversal
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
vendor: langchain-chatchat
product: langchain-chatchat
ecosystem: pip
affected:
  - langchain-chatchat <= 0.3.1
published: '2025-06-29'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-8v8h-4pjx-rg73'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-6854'
  - url: 'https://github.com/chatchat-space/Langchain-Chatchat/issues/5353'
  - url: 'https://github.com/chatchat-space/Langchain-Chatchat'
  - url: 'https://vuldb.com/?ctiid.314326'
  - url: 'https://vuldb.com/?id.314326'
  - url: 'https://vuldb.com/?submit.601161'
tags:
  - osv
  - pip
epss: 0.00538
epssPercentile: 0.42896
ingestedAt: '2026-07-08T18:25:47.548Z'
---

## Overview

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 packages

- `langchain-chatchat <= 0.3.1`

## Remediation

Refer to the advisory for the patched release.