CVE-2026-7844: fallo de gravedad media en chatchat-space Langchain-Chatchat
chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
33Vexday Risk Score
Sin señal de explotación. Ella tiene prueba de concepto pública.
ssvc Attendcvss 5.3epss 0.3%
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.
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
Productos afectados
chatchat-space · Langchain-ChatchatPoCs públicas encontradas — 1
cve_referencegithub.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-4-Missing-Auth-File-Endpoints.mdno verificado⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
CVEs relacionadas — chatchat-space Langchain-Chatchat
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-75128CRITICALLangchain-Chatchat through 0.3.1.3 Unauthenticated RCE via /tools/call EndpointEPSS 2.2%CVE-2025-6853MEDIUMchatchat-space Langchain-Chatchat Backend upload_temp_docs path traversalEPSS 0.6%CVE-2025-6855MEDIUMchatchat-space Langchain-Chatchat file path traversalEPSS 0.6%CVE-2025-6854MEDIUMchatchat-space Langchain-Chatchat files path traversalEPSS 0.6%CVE-2026-7847LOWchatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random valuesEPSS 0.2%CVE-2026-7846LOWchatchat-space Langchain-Chatchat OpenAI-Compatible File Upload API openai_routes.py files toctouEPSS 0.2%
Referencias
https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-4-Missing-Auth-File-Endpoints.mdhttps://github.com/chatchat-space/Langchain-Chatchat/https://github.com/chatchat-space/Langchain-Chatchat/issues/5465https://vuldb.com/submit/807790https://vuldb.com/vuln/361123https://vuldb.com/vuln/361123/cti