Python
CVE-2026-0769
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the implementation of eval_custom_component_code function. The issue results from the lack of proper validation of a user-supplied string before using it to execute python code. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26972.
AnalysisAI
Langflow has an eval injection in eval_custom_component_code (EPSS 2.0%) enabling remote code execution through crafted custom component definitions.
Technical ContextAI
The eval_custom_component_code function in Langflow uses Python's eval (CWE-95) to process custom component code, allowing injection of arbitrary Python expressions.
RemediationAI
Update Langflow. Replace eval with AST-based parsing or sandboxed execution.
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Same weakness CWE-95 – Eval Injection
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External POC / Exploit Code
Leaving vuln.today