CVE-2026-61438
Received Received - Intake

Remote Code Execution in PraisonAI Workflow Executor

Publication date: 2026-07-15

Last updated on: 2026-07-15

Assigner: VulnCheck

Description
PraisonAI before 4.6.78 contains a remote code execution vulnerability in JobWorkflowExecutor._exec_inline_python() due to insufficient AST validation of workflow script steps. Attackers can create malicious YAML workflow files with import os statements followed by os.system() calls that bypass sandbox checks and execute arbitrary OS commands with process privileges.

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Meta Information

Published
2026-07-15
Last Modified
2026-07-15
Generated
2026-07-15
AI Q&A
2026-07-15
EPSS Evaluated
N/A
NVD
CVE-2026-61438
EUVD
EUVD-2026-44643

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
praisonai praisonai to 4.6.78 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

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Executive Summary

CVE-2026-61438 is a remote code execution (RCE) vulnerability in PraisonAI versions before 4.6.78. It occurs due to insufficient AST validation in the JobWorkflowExecutor._exec_inline_python() function. Attackers can create malicious YAML workflow files with import os statements followed by os.system() calls that bypass sandbox checks and execute arbitrary OS commands with process privileges.

Impact Analysis

This vulnerability allows attackers to execute arbitrary OS commands on systems running vulnerable PraisonAI versions. This could lead to unauthorized access, data theft, system compromise, or further network infiltration. It is particularly dangerous in multi-tenant or CI environments where workflows may come from untrusted sources.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements and HIPAA's security rules for protected health information. Organizations using vulnerable PraisonAI versions may face compliance violations, legal penalties, and reputational damage if exploited.

Detection Guidance

To detect this vulnerability, inspect PraisonAI installations for versions before 4.6.78. Check workflow files for malicious YAML containing import os; os.system() patterns. Monitor for unexpected command executions or process activity from PraisonAI processes.

Mitigation Strategies

Upgrade PraisonAI to version 4.6.78 or later immediately. Remove 'os' from allowed modules in the sandbox configuration. Block ast.Import of 'os' entirely. Review and restrict workflow file sources to trusted origins only.

Executive Summary

CVE-2026-61438 is a remote code execution vulnerability in PraisonAI versions before 4.6.78. It occurs in the JobWorkflowExecutor._exec_inline_python() function due to insufficient AST validation of workflow script steps. Attackers can create malicious YAML files with import os statements followed by os.system() calls that bypass sandbox checks and execute arbitrary OS commands with process privileges.

Impact Analysis

This vulnerability allows attackers to execute arbitrary OS commands on systems running vulnerable PraisonAI versions. This could lead to full system compromise, data theft, or unauthorized access. It is particularly dangerous in multi-tenant or CI environments where workflows may come from untrusted sources.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations using vulnerable versions may face compliance violations, legal penalties, and reputational damage if exploited.

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