Vulnerability · Published Mar 7, 2026 · Assigned by VulDB

CVE-2026-3680RyuzakiShinji biome-mcp-server biome-mcp-server.ts command injection

Medium 6.3

In plain English

A medium-severity command injection in biome-mcp-server from RyuzakiShinji. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)1.4%top 27.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
RyuzakiShinji	biome-mcp-server	1.0

Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

References

VDB-349582 | RyuzakiShinji biome-mcp-server biome-mcp-server.ts command injection vdb-entry
VDB-349582 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #765399 | RyuzakiShinji biome-mcp-server <=1.0.0 Command Injection third-party-advisory
https://github.com/RyuzakiShinji/biome-mcp-server/pull/1 issue-tracking, patch
https://github.com/user-attachments/files/25466715/biome-mcp-server_security_advisory.pdf exploit
https://github.com/RyuzakiShinji/biome-mcp-server/pull/1/changes/335e1727147efeef011f1ff8b05dd751d8a660be issue-tracking, patch
https://github.com/RyuzakiShinji/biome-mcp-server/ product