SECURELYN

CVE-2026-0769

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.

Scores

9.8
CVSS 9.8 out of 10, critical severity.
41.7%
EPSS 41.7% chance of exploitation in the next 30 days.

The facts

Published
23 January 2026
Last changed
17 June 2026
NVD status
Analyzed
Severity
Critical, CVSS 9.8 out of 10 (version 3.0)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
Affects
  • langflow langflow
Known exploited
Not in the CISA Known Exploited Vulnerabilities catalogue in this build.
EPSS
41.7% chance of exploitation activity in the next 30 days (percentile 99).

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References