CVE-2026-55450 Scanner
CVE-2026-55450 Scanner - Unrestricted File Upload vulnerability in Langflow
Used 3.5k times · 5.9k assets checked · url
CVE
CVE-2026-55450
9.3
CVSScritical
Exploitable remotely over the internet · no authentication required.
Description
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.
Attack Vector
Network
Privileges Req.
None
User Interaction
None
langflow
Updated Sep 18, 2026View on NVD →
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CVE history: langflow
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