Workflow Engine Variable Resolver Vulnerability in Flyto2 Core

CVE-2026-67427

What is CVE-2026-67427?

CVE-2026-67427 is a vulnerability found in the Flyto2 Core execution kernel, which is utilized for automating workflows and managing AI-agent operations. This particular flaw concerns the workflow engine's variable resolver, which, prior to version 2.26.6, allowed the expansion of environment variables without proper validation or checks against a security policy. As a result, a malicious user could craft a workflow parameter that bypasses the set restrictions, potentially leading to unauthorized access to sensitive information. This vulnerability could have serious implications for organizations relying on Flyto2 Core for automation, as it poses significant risks related to data confidentiality and integrity.

Potential impact of CVE-2026-67427

1. Data Exfiltration: Exploitation of this vulnerability could enable attackers to extract sensitive data or secrets stored within the environment variables, undermining data confidentiality and exposing organizations to potential breaches.

2. Policy Bypass: The vulnerability allows for the circumvention of established capability policies, leading to unauthorized commands being executed within the system that can disrupt operational integrity and security.

3. Increased Attack Surface: The lack of sufficient checks in managing environment variables could lead to broader security vulnerabilities, leading to a heightened risk of further exploitation by attackers who can leverage this weakness as part of a more extensive attack strategy.

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