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CVE PROGRAM SOURCE RECORD2.1 Low

CVE-2026-101861

Langflow Code Execution via eval() in Component Input Schema

Description

Langflow 1.0.16 before 1.12.0 and 0.0.94 before 1.12.0 contain an unsafe eval() vulnerability in schema.py that allows authenticated attackers to achieve code execution by placing a Python object with a malicious __repr__ method into component input options lists. The eval() sink is triggered when a component is converted into a LangChain tool via ComponentToolkit.get_tools(), including during custom component saves through the API, by interpolating options into a Literal type string that is passed directly to eval() without safe evaluation controls.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

langflow-ai langflow

Default version status: unaffected

  • 1.0.16 to < 1.12.0affected
  • 0.0.94 to < 1.12.0affected
pkg:github/langflow-ai/langflow

References