CVE-2026-55532

Published: Ago 25, 2026 Last Modified: Ago 25, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,6
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: high
Availability: low

Description

AI Translation Available

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.

346

Origin Validation Error

Draft
Common Consequences
Security Scopes Affected:
Access Control Other
Potential Impacts:
Gain Privileges Or Assume Identity Varies By Context
Applicable Platforms
Technologies: Not Technology-Specific, Web Based
View CWE Details
352

Cross-Site Request Forgery (CSRF)

Stable
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Availability Non-Repudiation Access Control
Potential Impacts:
Gain Privileges Or Assume Identity Bypass Protection Mechanism Read Application Data Modify Application Data Dos: Crash, Exit, Or Restart
Applicable Platforms
Technologies: Web Based, Web Server
View CWE Details
https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828…
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-pvph-5j39-v…