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CVE-2026-10134

Unauthenticated Server-Side RCE via PythonCodeStructuredTool in Public Flows

Published
Last modified
published
Not listed in CISA KEV
Fix
Fix or patch referenced
1 Metasploit module, 1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read and modify every flow, conversation, message, file upload, and saved component in the Langflow database, can connect to internal services, abuse cloud metadata endpoints, laterally move to other tenants on the same Langflow instance, and Establish persistence by modifying the public flow's `tool_code` so normal `/api/v1/build/...` calls by any user re-execute attacker code at each build.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • IBM Langflow OSS

    From 1.0.0 · through 1.9.3

References 3

ibm.com

GitHub · rapid7/metasploit-framework

GitHub · rmhowe425/POC-CVE-2026-10134