CVE-2026-0769 Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability
Remote attackers can execute arbitrary code via improper validation in the eval_custom_component_code function without authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0769?
CVE-2026-0769 is a critical code injection vulnerability in Langflow Langflow, published on 23 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-95
Which versions are affected by CVE-2026-0769?
It affects 1 product.
Products include Langflow Langflow.
How do I fix CVE-2026-0769?
No fix has been published for CVE-2026-0769 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-0769 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-0769 exists.
Public exploit code: 1 Metasploit module and 1 proofs of concept on GitHub.
Other vulnerabilities in Langflow Langflow
Sources
Also known as GHSA-5v3c-9g74-93w7.