Description
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, MCP HTTP Stream _validate_origin uses request_origin.startswith(allowed), allowing the attacker-controlled localhost.attacker.com HTTP origin to satisfy the localhost allowlist. A webpage can send Content-Type: text/plain requests without preflight and invoke tools/call without an API key, including file writes that persist agent instructions. This issue is fixed in version 4.6.58.
CVSS 7.6EPSS 0.128%Risk 0.77
View source- Published
- 2026-08-25 16:16:54
- Affected versions
- <4.6.58
- Type
- Library
- Last modified
- 2026-08-25 17:17:30
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L