Is CVE-2026-11455 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-11455 being exploited in the wild.

How severe is CVE-2026-11455?

Medium severity, with a CVSS score of 5, published 7 June 2026.

Which products and versions are affected?

FoundationAgents MetaGPT up to 0.8.2.

Is there a fix for CVE-2026-11455?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-11455 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-11455?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-11455: FoundationAgents MetaGPT command injection in check_cmd_exists

CVE-2026-11455 · Severity: medium · CVSS 5 · Published 2026-06-07

MetaGPT is a multi-agent framework used to build AI-driven software applications. A security flaw in how the system handles configuration settings for Mermaid (a diagramming tool) allows an attacker to execute unauthorized commands on the underlying server. This could lead to a complete system compromise, though the attack is complex to perform and requires some level of existing access.

Quick answers

Is CVE-2026-11455 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-11455 being exploited in the wild.
How severe is CVE-2026-11455?: Medium severity, with a CVSS score of 5, published 7 June 2026.
Which products and versions are affected?: FoundationAgents MetaGPT up to 0.8.2.
Is there a fix for CVE-2026-11455?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-11455 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-11455?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A command injection vulnerability exists in MetaGPT versions up to 0.8.2 within the `check_cmd_exists` function located in `metagpt/utils/common.py`. The vulnerability is rooted in the improper neutralization of the `mermaid.path` configuration argument, which is passed to a system shell without sufficient validation. A remote attacker with low privileges can exploit this by manipulating the path configuration to execute arbitrary system commands. While the attack vector is network-based, exploitation is considered difficult and requires a high degree of complexity. As of the advisory date, the project has been notified via an issue report but a formal patch has not been confirmed.

Affected products

FoundationAgents MetaGPT up to 0.8.2

Timeline

2026-06-07: advisory: Initial disclosure via VulDB and NVD
2026-06-07: disclosed: Public exploit details shared via Notion and GitHub issues

References

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