CVE-2026-34953 CRITICAL

CVE-2026-34953: PraisonAI: Authentication Bypass in OAuthManager.validate_token()

Vendor Mervinpraison
Product PraisonAI
Weakness CWE-863 · Incorrect authorization
Published April 3, 2026
Last update April 6, 2026
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 3, 2026 CVE published
April 6, 2026 Record updated

Related vulnerabilities

04Related CVE

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