High severity · published Sep 15, 2026
CVE-2026-57136
PraisonAI SandboxExecutor allowedCommands bypass via shell chaining
8.8
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
PraisonAI · MervinPraison
>= 1.2.3, < 1.7.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-57136
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-57136
github.com
https://github.com/MervinPraison/PraisonAI/commit/709a0387853709a5e2f2c34680fa64cada252c27
github.com
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.60
github.com
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-vjv9-7m7j-h833
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