CVE-2026-34935
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductPraisonai
PublishedApr 3, 2026
First seenApr 3, 2026
Weakness typeCWE-78OS command injection
How to fix
Update
- praison praisonai4.5.69 or later
- praisonai4.5.69 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| praison praisonai | 4.5.15 ≤ v < 4.5.69 | 4.5.69 |
| praisonaiPyPI | 4.5.15 ≤ v < 4.5.69 | 4.5.69 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.