CVE-2026-34935
PraisonAI: OS Command Injection in MCPHandler.parse_mcp_command()
- State
- Published
- Severity
- 9.8 Critical
- Published
- Apr 3, 2026
- Updated
- Apr 6, 2026
- Reserved
- Mar 31, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | GitHub_M |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
PraisonAIMervinPraison |
|
References
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