- CVSS
- MEDIUM · 6.3 v3.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- Published
- 2026-05-05
- Weakness
- CWE-287, CWE-306
- Source
- nvd.nist.gov/vuln/detail/CVE-2026-7844
Description
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.
References
- https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-4-Missing-Auth-File-Endpoints.md
- https://github.com/chatchat-space/Langchain-Chatchat/
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5465
- https://vuldb.com/submit/807790
- https://vuldb.com/vuln/361123
- https://vuldb.com/vuln/361123/cti
How GTK Cyber trains on this
AI security training at GTK Cyber covers the LLM and ML-pipeline vulnerability classes that vulnerabilities like CVE-2026-7844 fall into. Our hands-on courses are taught by Charles Givre and other practitioners who break and defend production AI systems.