CVE-2026-7844CWE-287CWE-306

chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication

Medium · published May 5, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
40.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
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
EPSS
0.00486 · 40.9th percentile
Weaknesses
CWE-287 · Improper Authentication; CWE-306 · Missing Authentication for Critical Function
Published
2026-05-05T15:00Z
EPSS history
Timeline
  • 05 MAY 15:00Z
    chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication
    cvelistv5