CVE-2026-73081 activepieces CVE debrief

Who should care

Administrators and users of Activepieces, especially those with permission to create or edit flows, should assess their exposure and take necessary actions to prevent exploitation.

Why it matters

CVE-2026-73081 is a high-severity vulnerability in Activepieces that allows authenticated users to execute arbitrary commands during compilation, potentially leading to unauthorized access and data breaches. Defenders should assess exposure, restrict permissions, and monitor for suspicious activity.

• Authenticated users with flow creation or editing permissions can execute arbitrary commands as the worker process user.
• Attackers may read and write the worker filesystem, exfiltrate environment secrets, and reach internal services available to the worker.

Technical summary

The vulnerability is caused by the worker's code-compilation pipeline building the on-disk path for a Code step from the step's name and passing that path to a shell-invoked build command. A step name containing shell metacharacters can break out of the intended build invocation and execute arbitrary commands during compilation before any code sandbox is created. This issue can be addressed by updating Activepieces to version 0.80.0 or later, restricting permissions for creating or editing flows, and monitoring for suspicious activity.

Defensive priority

High

Recommended defensive actions

• Review and update Activepieces to version 0.80.0 or later
• Restrict permissions for creating or editing flows to trusted users
• Monitor for suspicious activity and implement additional security measures
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The vulnerability is caused by the worker's code-compilation pipeline building the on-disk path for a Code step from the step's name and passing that path to a shell-invoked build command. A step name containing shell metacharacters can break out of the intended build invocation and execute arbitrary commands during compilation.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.