Langflow — Vulnerability (CVE-2026-48520)
Date: 2026-06
Affected: langflow/langflow
Attack vector: other
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2026-48520
CWE: CWE-73
CVSS: 6.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N)

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.


Mitigations:

Architectural layers (MAESTRO):