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OpenAdvisories
High · 8.8 CVE-2026-57136 EUVD-2026-78421GHSA-vjv9-7m7j-h833

PraisonAI SandboxExecutor allowedCommands bypass via shell chaining

Published Sep 15, 2026 · Updated Sep 15, 2026 · Assigned by GitHub_M

Description

PraisonAI is a multi-agent teams system. From 1.2.3 until 1.7.2, CommandValidator in src/praisonai-ts/src/cli/features/sandbox-executor.ts validates only the first whitespace-delimited executable against allowedCommands, then SandboxExecutor passes the complete command string to sh -c. A command beginning with an allowed executable can append a non-allowlisted command through shell metacharacters, causing arbitrary commands to run with the PraisonAI process privileges. This issue is fixed in version 1.7.2.

Affected products

VendorProductAffectedFixed
MervinPraison PraisonAI >= 1.2.3, < 1.7.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm praisonai >= 1.2.3, < 1.7.2 1.7.2 GHSA-vjv9-7m7j-h833

References