CVE-2026-61438 PUBLISHED

PraisonAI before 4.6.78 Remote Code Execution via Broken AST Sandbox

Assigner: VulnCheck
Reserved: 09.07.2026 Published: 15.07.2026 Updated: 15.07.2026

PraisonAI before 4.6.78 contains a remote code execution vulnerability in JobWorkflowExecutor._exec_inline_python() due to insufficient AST validation of workflow script steps. Attackers can create malicious YAML workflow files with import os statements followed by os.system() calls that bypass sandbox checks and execute arbitrary OS commands with process privileges.

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	Passive

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 7.3

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

Product Status

Vendor	MervinPraison
Product	PraisonAI
Versions	Default: unaffected affected from 0 to 4.6.78 (excl.) Version 4.6.78 is unaffected

Credits

chakrapani150 reporter

References

Problem Types

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE