CVE-2026-3680 RyuzakiShinji biome-mcp-server biome-mcp-server.ts command injection
Remote attackers can execute arbitrary commands via command injection in the biome-mcp-server tool, requiring a patch to mitigate.
- 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-2026-3680?
CVE-2026-3680 is a medium-severity command injection vulnerability in RyuzakiShinji biome-mcp-server, published on 7 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security flaw has been discovered in RyuzakiShinji biome-mcp-server up to 1.0.0. Affected by this issue is some unknown functionality of the file biome-mcp-server.ts. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The patch is named 335e1727147efeef011f1ff8b05dd751d8a660be. Applying a patch is the recommended action to fix this issue.
Which versions are affected by CVE-2026-3680?
How do I fix CVE-2026-3680?
No fix has been published for CVE-2026-3680 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-2026-3680 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3680 exists.
Sources
Also known as GHSA-hr3g-62w3-g764.