CVE-2026-7844 MEDIUM

CVE-2026-7844: chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication

Vendor Chatchat-Space
Product Langchain-Chatchat
Weakness CWE-306 · Missing auth
Published May 5, 2026
Last update May 6, 2026

CVSS base score

5.3/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/list_files/retrieve_file/retrieve_file_content/delete_file of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Compatible File Service. The manipulation results in missing authentication. The attacker must have access to the local network to execute the attack. The exploit is now public and may 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