CVE-2025-71334 Flowise CVE debrief

Who should care

Organizations using Flowise for AI workflow management should prioritize patching this vulnerability. The vulnerability's critical severity and potential for remote code execution make it a high-risk issue. Security teams should ensure that Flowise instances are updated to version 3.0.6 or later.

Technical summary

The vulnerability in Flowise arises from a lack of validation for chatflowId and chatId parameters in file handling operations. Attackers can exploit this by providing path-traversal values to write arbitrary files via the /api/v1/chatflows endpoint and read arbitrary files via the /api/v1/get-upload-file and /api/v1/openai-assistants-file/download endpoints. This can lead to remote code execution. The vulnerability is characterized by a CVSS score of 9.3, indicating critical severity.

Defensive priority

High priority should be given to patching Flowise instances to prevent exploitation of this critical vulnerability. Security teams should verify that Flowise is updated to version 3.0.6 or later.

Recommended defensive actions

• Update Flowise to version 3.0.6 or later
• Verify validation of chatflowId and chatId parameters in file handling operations
• Monitor for suspicious activity on /api/v1/chatflows, /api/v1/get-upload-file, and /api/v1/openai-assistants-file/download endpoints
• Implement additional security measures to detect and prevent path-traversal attacks
• Review and update incident response plans to address potential remote code execution

Evidence notes

The vulnerability was reported by an unnamed source and is detailed in the NVD database. The CVE record and NVD detail pages provide additional information on the vulnerability. Vendor advisories and patches are available on the Flowise GitHub repository.

Official resources