CVE-2026-11455 FoundationAgents MetaGPT common.py check_cmd_exists command injection
Remote attackers can execute arbitrary commands via the mermaid.path argument in MetaGPT's check_cmd_exists function, requiring high complexity.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11455?
CVE-2026-11455 is a low-severity command injection vulnerability in FoundationAgents MetaGPT, published on 7 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-11455?
How do I fix CVE-2026-11455?
No fix has been published for CVE-2026-11455 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-11455 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11455 exists.
Sources
Also known as GHSA-h4jg-8v58-57wj.