CVE-2026-48520: Langflow

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" (or "Public Flows" in code) contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of the flow is allowed. The execution request can contain a list of files that gets read by Langflow and fed into the LLM. The files path can be any path supported by the storage - it can be either a local file or S3 path if supported by the local configuration This vulnerability is fixed in 1.10.0.

Affected products

• Langflow Langflow: before 1.10.0 (fixed in 1.10.0)

Published 2026-06-23. Last modified 2026-06-26.