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CVE-2026-57138: PraisonAI

Severity

9.9 (CRITICAL)

Vendor

MERVINPRAISON

Affected versions

PraisonAI versions >= 1.4.0 and < 1.7.2

Fixed version

1.7.2

Patch status

Patched

Published

2026-09-15T11:17:11.180

Modified

2026-09-15T14:45:28.563

Why it matters

This vulnerability allows unauthenticated attackers to escape the sandbox in PraisonAI's codeMode, leading to arbitrary code execution on the host system. This can result in data theft, system compromise, or service disruption. Immediate patching is crucial to prevent severe impact.

Recommended admin actions

• Upgrade PraisonAI to version 1.7.2 or later immediately.
• Review access controls and network segmentation for PraisonAI deployments.
• Monitor PraisonAI logs for any suspicious activity indicative of sandbox escape or unauthorized command execution.
• Implement least privilege principles for the PraisonAI application's execution environment.

Technical summary

PraisonAI is a multi-agent teams system. From 1.4.0 until 1.7.2, codeMode in src/praisonai-ts/src/tools/builtins/code-mode.ts executes untrusted JavaScript with new Function() inside with(sandbox) and relies on a small source-code blocklist plus shadowed process and require properties. Code can use ({}).constructor.constructor to recover the real Function constructor, obtain process and process.mainModule.require, and reach host filesystem and subprocess APIs despite the advertised sandbox. Attackers who control codeMode input can read secrets, modify files, execute commands, or exhaust the host process. This issue is fixed in version 1.7.2.

View the official NVD record for CVE-2026-57138

AI-enriched (HIGH confidence). Validate against the vendor advisory before taking production action.