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CVE-2026-34935

CRITICAL CVSS 3.1: 9.8 EPSS 0.04%
Updated Apr 07, 2026
Praisonai
Parameter Value
CVSS 9.8 (CRITICAL)
Affected Versions before 4.5.69
Fixed In 4.5.69
Type CWE-78 (OS Command Injection)
Vendor Praisonai
Public PoC No

PraisonAI is a multi-agent teams system. From version 4.5.15 to before version 4.5.69, the --mcp CLI argument is passed directly to shlex.split() and forwarded through the call chain to anyio.open_process() with no validation, allowlist check, or sanitization at any hop, allowing arbitrary OS command execution as the process user. This issue has been patched in version 4.5.69.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)