MervinPraison PraisonAI up to 1.5.89 execute_code protection mechanism

Summaryinfo

A vulnerability classified as critical was found in MervinPraison PraisonAI up to 1.5.89. This affects the function execute_code. The manipulation results in protection mechanism. This vulnerability is identified as CVE-2026-34938. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in MervinPraison PraisonAI up to 1.5.89. It has been classified as critical. Affected is the function execute_code. The manipulation with an unknown input leads to a protection mechanism vulnerability. CWE is classifying the issue as CWE-693. The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

PraisonAI is a multi-agent teams system. Prior to version 1.5.90, execute_code() in praisonai-agents runs attacker-controlled Python inside a three-layer sandbox that can be fully bypassed by passing a str subclass with an overridden startswith() method to the _safe_getattr wrapper, achieving arbitrary OS command execution on the host. This issue has been patched in version 1.5.90.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-34938 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. There are known technical details, but no exploit is available.

Upgrading to version 1.5.90 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• MervinPraison

Name

• PraisonAI

Version

• 1.5.0
• 1.5.1
• 1.5.2
• 1.5.3
• 1.5.4
• 1.5.5
• 1.5.6
• 1.5.7
• 1.5.8
• 1.5.9
• 1.5.10
• 1.5.11
• 1.5.12
• 1.5.13
• 1.5.14
• 1.5.15
• 1.5.16
• 1.5.17
• 1.5.18
• 1.5.19
• 1.5.20
• 1.5.21
• 1.5.22
• 1.5.23
• 1.5.24
• 1.5.25
• 1.5.26
• 1.5.27
• 1.5.28
• 1.5.29
• 1.5.30
• 1.5.31
• 1.5.32
• 1.5.33
• 1.5.34
• 1.5.35
• 1.5.36
• 1.5.37
• 1.5.38
• 1.5.39
• 1.5.40
• 1.5.41
• 1.5.42
• 1.5.43
• 1.5.44
• 1.5.45
• 1.5.46
• 1.5.47
• 1.5.48
• 1.5.49
• 1.5.50
• 1.5.51
• 1.5.52
• 1.5.53
• 1.5.54
• 1.5.55
• 1.5.56
• 1.5.57
• 1.5.58
• 1.5.59
• 1.5.60
• 1.5.61
• 1.5.62
• 1.5.63
• 1.5.64
• 1.5.65
• 1.5.66
• 1.5.67
• 1.5.68
• 1.5.69
• 1.5.70
• 1.5.71
• 1.5.72
• 1.5.73
• 1.5.74
• 1.5.75
• 1.5.76
• 1.5.77
• 1.5.78
• 1.5.79
• 1.5.80
• 1.5.81
• 1.5.82
• 1.5.83
• 1.5.84
• 1.5.85
• 1.5.86
• 1.5.87
• 1.5.88
• 1.5.89

Website

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

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