CVE-2026-34953
Critical
Description
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.
SeverityCritical
CVSS9.1
Exploit probability—
ProductPraisonai
PublishedApr 3, 2026
First seenApr 3, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- praison praisonai4.5.97 or later
- praisonai4.5.97 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| praison praisonai | v < 4.5.97 | 4.5.97 |
| praisonaiPyPI | v < 4.5.97 | 4.5.97 |
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