← AI agent vulnerabilities

CVE-2026-34953

PraisonAI

9.1
Severity
Critical
Published
April 3, 2026
Last modified
July 24, 2026

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.

CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness

References

CVE-2026-34953 on NVD

Listed in

CriticalMCP serversMissing authorization

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