Vulnerability · Published Sep 15, 2026 · Assigned by GitHub_M

CVE-2026-57136PraisonAI SandboxExecutor allowedCommands bypass via shell chaining

High 8.8

In plain English

A high-severity OS command injection in PraisonAI from MervinPraison. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 54.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	praisonai	1.7.2	GHSA-vjv9-7m7j-h833

Affected products (as reported)

Vendor	Product	Versions
MervinPraison	PraisonAI	>= 1.2.3, < 1.7.2

Weakness: CWE-78, CWE-693, CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-vjv9-7m7j-h833 x_refsource_CONFIRM
https://github.com/MervinPraison/PraisonAI/commit/709a0387853709a5e2f2c34680fa64cada252c27 x_refsource_MISC
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.60 x_refsource_MISC