Is CVE-2026-101861 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-101861?

CVE-2026-101861 has a CVSS v3 severity of MEDIUM (4.1).

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CVE-2026-101861

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.