CVE-2026-33017: Unauthenticated RCE in Langflow’s Public Flow Endpoint Explained

📰 Hackernoon

Langflow's public flow endpoint is vulnerable to unauthenticated RCE, allowing full server compromise with a single curl request

advanced Published 26 Mar 2026

Action Steps

Identify Langflow installations with exposed public flow endpoints
Verify the version and check for the presence of the vulnerability
Update Langflow to the latest version with the security patch
Validate the fix by testing the endpoint with a curl request

Who Needs to Know This

Security teams and DevOps engineers should be aware of this vulnerability and update Langflow immediately to prevent exploitation, as it can lead to severe consequences

Key Insight

💡 Unauthenticated RCE vulnerabilities can lead to full server compromise, highlighting the importance of prompt patching and secure coding practices