CVE-2026-7847 LOW

CVE-2026-7847: chatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random values

Vendor Chatchat-Space
Product Langchain-Chatchat
Weakness CWE-330 · Insufficient randomness
Published May 5, 2026
Last update May 6, 2026

CVSS base score

2.1/10
Attack vector Adjacent
Attack complexity High
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was found in chatchat-space Langchain-Chatchat up to 0.3.1.3. The affected element is the function _get_file_id of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Uploaded File Handler. Performing a manipulation results in insufficiently random values. Access to the local network is required for this attack. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Key dates

02Disclosure timeline

May 5, 2026 CVE published
May 6, 2026 Record updated