CVE-2026-0771
HIGHCVSS Vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Description
Langflow PythonFunction Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Attack vectors and exploitability will vary depending on the configuration of the product. The specific flaw exists within the handling of Python function components. Depending upon product configuration, an attacker may be able to introduce custom Python code into a workflow. An attacker can leverage this vulnerability to execute code in the context of the application. Was ZDI-CAN-27497.
Analysis
Langflow's PythonFunction component allows authenticated attackers with user interaction to inject and execute arbitrary Python code within application workflows, achieving remote code execution. The vulnerability affects Langflow deployments using Python-based AI/ML components, with exploitation feasibility depending on specific product configurations. …
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Remediation
Within 24 hours: Identify all Langflow instances in your environment and assess internet exposure; implement network segmentation to restrict access to trusted sources only. Within 7 days: Deploy WAF rules to block malicious PythonFunction payloads; disable the PythonFunction component if operationally feasible; conduct threat hunting for indicators of compromise. …
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