CVE-2026-55522 MervinPraison CVE debrief

Who should care

Users of PraisonAI versions 3.9.26 through 4.6.57 and 0.12.12 through 1.6.57 should be aware of this vulnerability and take steps to mitigate it. This includes applying patches to upgrade to version 4.6.58 of praisonai and 1.6.58 of praisonaiagents, restricting access to workflow and recipe execution to trusted users, and monitoring for suspicious workflow and recipe execution activity. Operators, platform administrators, vulnerability management teams, and security teams should review the affected scope and take necessary actions to protect their systems. Compensating controls should be reviewed for exposed systems while remediation is scheduled and verified. Relevant monitoring, detection, and logs should be checked for exposed assets that need extra review. Exceptions should be tracked, and remediated assets should be retested and documented before closing the item. Asset inventories should be reviewed to identify potentially affected systems. Rollback and change window procedures should be evaluated to minimize downtime and ensure smooth patch deployment. Source tracking and logging mechanisms should be implemented to detect potential exploitation attempts. Security teams should prioritize patching to prevent code execution and review compensating controls for exposed systems. Monitoring and detection capabilities should be enhanced to identify suspicious workflow and recipe execution activity. Asset inventory management should be updated to reflect the affected systems and track patch deployment. Change management processes should be adapted to ensure that patches are applied in a timely manner. Source tracking and logging should be implemented to detect potential exploitation attempts. Security teams should also review the affected scope and take necessary actions to protect their systems. Compensating controls should be reviewed for exposed systems while remediation is scheduled and verified. Relevant monitoring, detection, and logs should be checked for exposed assets that need extra review. Exceptions should be tracked, and remediated assets should be retested and documented before closing the item. Asset inventories should be reviewed to identify who

Technical summary

The CVE-2026-55522 issue allows for arbitrary Python code execution in PraisonAI versions 3.9.26 through 4.6.57 and 0.12.12 through 1.6.57 due to a vulnerability in the workflow 'include' feature. This is caused by an insecure import and execution of code from a tools.py file without proper security checks. The vulnerability can be exploited by an attacker who can cause a victim process to run a workflow or recipe that includes an untrusted local recipe directory.

Defensive priority

PraisonAI users should prioritize patching to prevent code execution.

Recommended defensive actions

• Apply patches to upgrade to version 4.6.58 of praisonai and 1.6.58 of praisonaiagents.
• Restrict access to workflow and recipe execution to trusted users.
• Monitor for suspicious workflow and recipe execution activity.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE-2026-55522 issue allows for arbitrary Python code execution in PraisonAI versions 3.9.26 through 4.6.57 and 0.12.12 through 1.6.57 due to a vulnerability in the workflow 'include' feature. This is caused by an insecure import and execution of code from a tools.py file without proper security checks.

Official resources