CVE-2026-55450criticalexplotación observadaCWE-200CWE-306CWE-400

CVE-2026-55450: fallo crítico en langflow-ai langflow

Langflow: Unauthenticated file upload leads to DoS (space exhaustion) and information leak

Publicada el

Seguir esta CVE+ Monitorear langflow+ Monitorear langflow

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

85Vexday Risk Score

Corrige ahora. Ella explotación observada por VulnCheck y tiene exploit funcional público.

ssvc Actcvss 9.3epss 1.2%
de la publicación al arma111 días
Publicada en NVD23 jun
1ª PoC+111d
VulnCheck+47d
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.1, unauthenticated users can upload any amount of data to the server without any limitations. No need for any prior knowledge, only network access to Langflow. This can lead to space exhaustion on the server. In addition, in the response, the absolute path of the uploaded file is reported to the attacker, which is an information leak that can assist in chaining other primitives. This vulnerability is fixed in 1.9.1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:H
Productos afectados
langflow-ai · langflow
⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
CVEs relacionadas — langflow-ai langflow

En el mismo producto, de las más peligrosas a las menos.

CVE-2025-3248CRITICALLangflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/codeEPSS 100.0%KEVCVE-2026-33017CRITICALLangflow has Unauthenticated Remote Code Execution via Public Flow Build EndpointEPSS 96.4%KEVCVE-2026-55255HIGHLangflow: IDOR Vulnerability in `/api/v1/responses` Endpoint Allows Authenticated Attackers to Access Another User's FlowEPSS 0.9%KEVCVE-2026-5027HIGHLangflow - Path Traversal Arbitrary File Write via upload_user_fileEPSS 40.0%CVE-2026-27966CRITICALLangflow has Remote Code Execution in CSV AgentEPSS 35.2%CVE-2026-21445HIGHLangflow Missing Authentication on Critical API EndpointsEPSS 33.3%