CVE-2026-33017

Langflow Code Injection Vulnerability

Langflow

Langflow is a tool for building and deploying AI-powered agents and workflows. In versions prior to 1.9.0, the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint allows building public flows without requiring authentication. When the optional data parameter is supplied, the endpoint uses attacker-controlled flow data (containing arbitrary Python code in node definitions) instead of the stored flow data from the database. This code is passed to exec() with zero sandboxing…

20. Mär 2026

Ausgewertete Quellen

• Hinweis
  https://medium.com/@aviral23/cve-2026-33017-how-i-found-an-unauthenticated-rce-in-langflow-by-reading-the-code-they-already-dc96cdce5896
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33017
• CISA
  Langflow Code Injection Vulnerability
• NVD
  CVE-2026-33017
• GitHub
  https://github.com/advisories/GHSA-rvqx-wpfh-mfx7
• GitHub
  https://github.com/langflow-ai/langflow/security/advisories/GHSA-vwmf-pq79-vjvx