CVE-2026-57138

Critical

Description

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.

SeverityCritical
CVSS9.9
Exploit probability—
ProductPraisonai
PublishedSep 15, 2026
First seenSep 15, 2026

How to fix

Update
  • praisonai1.7.2 or later

Affected products

ProductAffected versionsFixed in
praisonainpm1.4.0 ≤ v < 1.7.21.7.2

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