Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability.
Date: 2026-01
Affected: langflow/langflow
Attack vector: rce
Category: vulnerability-disclosure
Severity: Critical
CVE: CVE-2026-0769
CWE: CWE-95
CVSS: 9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

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.


Mitigations:

Architectural layers (MAESTRO):