MervinPraison PraisonAI up to 4.5.96 HTTP Request validate_token authorization

Summaryinfo

A vulnerability was found in MervinPraison PraisonAI up to 4.5.96 and classified as critical. This impacts the function validate_token of the component HTTP Request Handler. The manipulation results in authorization. This vulnerability is cataloged as CVE-2026-34953. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in MervinPraison PraisonAI up to 4.5.96. It has been classified as critical. Affected is the function validate_token of the component HTTP Request Handler. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-34953 since 03/31/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

Upgrading to version 4.5.97 eliminates this vulnerability.

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Productinfo

Vendor

• MervinPraison

Name

• PraisonAI

Version

• 4.5.0
• 4.5.1
• 4.5.2
• 4.5.3
• 4.5.4
• 4.5.5
• 4.5.6
• 4.5.7
• 4.5.8
• 4.5.9
• 4.5.10
• 4.5.11
• 4.5.12
• 4.5.13
• 4.5.14
• 4.5.15
• 4.5.16
• 4.5.17
• 4.5.18
• 4.5.19
• 4.5.20
• 4.5.21
• 4.5.22
• 4.5.23
• 4.5.24
• 4.5.25
• 4.5.26
• 4.5.27
• 4.5.28
• 4.5.29
• 4.5.30
• 4.5.31
• 4.5.32
• 4.5.33
• 4.5.34
• 4.5.35
• 4.5.36
• 4.5.37
• 4.5.38
• 4.5.39
• 4.5.40
• 4.5.41
• 4.5.42
• 4.5.43
• 4.5.44
• 4.5.45
• 4.5.46
• 4.5.47
• 4.5.48
• 4.5.49
• 4.5.50
• 4.5.51
• 4.5.52
• 4.5.53
• 4.5.54
• 4.5.55
• 4.5.56
• 4.5.57
• 4.5.58
• 4.5.59
• 4.5.60
• 4.5.61
• 4.5.62
• 4.5.63
• 4.5.64
• 4.5.65
• 4.5.66
• 4.5.67
• 4.5.68
• 4.5.69
• 4.5.70
• 4.5.71
• 4.5.72
• 4.5.73
• 4.5.74
• 4.5.75
• 4.5.76
• 4.5.77
• 4.5.78
• 4.5.79
• 4.5.80
• 4.5.81
• 4.5.82
• 4.5.83
• 4.5.84
• 4.5.85
• 4.5.86
• 4.5.87
• 4.5.88
• 4.5.89
• 4.5.90
• 4.5.91
• 4.5.92
• 4.5.93
• 4.5.94
• 4.5.95
• 4.5.96

Website

• Product: https://github.com/MervinPraison/PraisonAI/

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