A zero-day Langflow flaw has been exploited for remote code execution, leaving users exposed.
**Langflow, an open-source low-code platform for building AI applications, has a significant security issue.** Researchers at VulnCheck recently discovered a high-severity unpatched security flaw, identified as CVE-2026-5027, which is being actively exploited in the wild for unauthenticated remote code execution (RCE).
The vulnerability is believed to be related to the Langflow platform’s API, which is designed to facilitate the integration of AI models with various applications. The fact that this flaw has been actively exploited suggests that threat actors are targeting Langflow users to gain unauthorized access.
Details about the flaw are scarce, but it’s known to affect Langflow installations without requiring any authentication. This means that attackers can exploit the vulnerability without needing valid credentials, making it an attractive target for malicious actors.
The lack of a patch from Langflow’s developers further exacerbates the situation, leaving users vulnerable to attacks. Researchers at VulnCheck have confirmed that the flaw is being exploited in the wild, but they are refraining from providing more information to avoid facilitating potential attacks.
**What this means:** Low-code platforms like Langflow are becoming increasingly popular for building AI applications, and their security vulnerabilities can have far-reaching consequences. Users of Langflow and similar platforms should be cautious and monitor their systems for any signs of suspicious activity.
