CVE-2026-34953: Praison Praisonai

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Praison Praisonai: before 4.5.97 (fixed in 4.5.97)

Published 2026-04-03. Last modified 2026-07-24.