Remote Code Execution Vulnerability in Heym Workflow Engine
CVE-2026-67544

8.8HIGH

Key Information:

Vendor

Heymrun

Status
Heym
Vendor
CVE Published:
11 November 2026

What is CVE-2026-67544?

The Heym Workflow Engine prior to version 0.0.71 contains a critical flaw that enables authenticated users to execute arbitrary Python code on the backend server. This vulnerability arises from the improper handling of the playwrightCode field, which allows users to inject and execute code without sufficient validation or sandboxing. As a result, any authenticated individual, including newly registered accounts, can gain full remote code execution capabilities, compromising the system's security and potentially allowing unauthorized access to sensitive data and system resources. This issue has been addressed in version 0.0.71, underscoring the importance of keeping software updated.

Affected Version(s)

heym < 0.0.71

References

https://github.com/heymrun/heym/security/advisories/GHSA-...
x_refsource_CONFIRM
https://github.com/heymrun/heym/commit/d2fd46c07754c4ed3e...
x_refsource_MISC
https://github.com/heymrun/heym/releases/tag/0.0.71
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.