Langflow: Unauthenticated file upload leads to DoS (space exhaustion) and information leak
70Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actcvss 9.3epss 12%
from disclosure to weapon
Published on NVDJun 23
VulnCheck+47d
exploitation probability
12%top 4% of all CVEs
observed exploitation
yesVulnCheck
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
Affected products
langflow-ai · langflow