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CVE-2026-34953

CRITICAL CVSS 3.1: 9.1 EPSS 0.01%
Updated Apr 09, 2026
Praisonai
Parameter Value
CVSS 9.1 (CRITICAL)
Affected Versions before 4.5.97
Fixed In 4.5.97
Type CWE-863 (Incorrect Authorization)
Vendor Praisonai
Public PoC No

PraisonAI is a multi-agent teams system. Prior to version 4.5.97, OAuthManager.validate_token() returns True for any token not found in its internal store, which is empty by default. Any HTTP request to the MCP server with an arbitrary Bearer token is treated as authenticated, granting full access to all registered tools and agent capabilities.

This issue has been patched in version 4.5.97.

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
None
No disruption

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Praison Praisonai
cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*
4.5.97