ZDI-26-026: (0Day) Foundation Agents MetaGPT deserialize_message Deserialization of Untrusted Data Remote Code Execution Vulnerability

Published Jan 9, 2026
·
Updated

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foundation Agents MetaGPT. Authentication is not required to exploit this vulnerability. The specific flaw exists within the deserializemessage function. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account.

Other sources

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foundation Agents MetaGPT. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 9.8. The following CVEs are assigned: CVE-2026-0760.

ZDI

Affected Software

1 affected component
Foundation Agents MetaGPT

Event History

Jan 9, 2026
Advisory Published
via ZDI·06:00 AM
Data Sourced
via ZDI·06:00 AM
Description
Mar 10, 2026
Advisory Published
via ZDI·02:45 PM
Data Sourced
via ZDI·02:45 PM
Affected Software
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Frequently Asked Questions

1

What is the severity of ZDI-26-026?

The severity of ZDI-26-026 is critical due to its ability to allow remote code execution without authentication.

2

How do I fix ZDI-26-026?

To fix ZDI-26-026, update to the latest version of Foundation Agents MetaGPT that addresses this vulnerability.

3

What type of vulnerability is ZDI-26-026?

ZDI-26-026 is a deserialization of untrusted data vulnerability that can lead to remote code execution.

4

Who can exploit ZDI-26-026?

Any remote attacker can exploit ZDI-26-026, as authentication is not required to trigger the vulnerability.

5

What are the impacts of ZDI-26-026?

The impact of ZDI-26-026 includes potential unauthorized access and execution of arbitrary commands on affected systems.

Contact

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