MervinPraison PraisonAI/praisonaiagents Tool Loader tools.py Workflow._execute_include code injection

Summaryinfo

A vulnerability described as critical has been identified in MervinPraison PraisonAI and praisonaiagents. This impacts the function Workflow._execute_include of the file tools.py of the component Tool Loader. Such manipulation leads to code injection. This vulnerability is traded as CVE-2026-55522. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in MervinPraison PraisonAI and praisonaiagents (unknown version) and classified as critical. Affected by this issue is the function Workflow._execute_include of the file tools.py of the component Tool Loader. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

PraisonAI is a multi-agent teams system. In versions 3.9.26 through 4.6.57 of praiseonai and 0.12.12 through 1.6.57 of praiseonaiagents, the workflow "include" feature is vulnerable to code execution. Workflow._execute_include() implicitly imports and runs an included recipe's tools.py via a raw importlib.util.spec_from_file_location() and spec.loader.exec_module() call, without honoring the PRAISONAI_ALLOW_TEMPLATE_TOOLS/PRAISONAI_ALLOW_LOCAL_TOOLS autoload opt-in gates or routing through the centralized safe loader that protects the other tools.py autoload paths. As a result, a workflow that includes an attacker-controlled local recipe directory executes arbitrary module-level Python code during include setup, before any child workflow parsing or model call, and the same sink is reachable through the higher-level praisonai.recipe.run() recipe API. An attacker who can cause a victim process to run a workflow or recipe that includes an untrusted local recipe achieves arbitrary Python code execution as the PraisonAI process user, a variant that bypasses the hardening applied to the previously disclosed automatic tools.py RCE advisory family. This issue has been fixed in version 4.6.58 of praisonai and 1.6.58 of praisonaiagents.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-55522 since 06/17/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/05/2026). The MITRE ATT&CK project declares the attack technique as T1059.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• MervinPraison

Name

• PraisonAI
• praisonaiagents

Website

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

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