Medium severity6.3NVD Advisory· Published Mar 7, 2026· Updated Apr 29, 2026

CVE-2026-3680

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

User Attachments/Filesreferences

Patches

Vulnerability mechanics

References

News mentions

No linked articles in our index yet.

Severity

MediumCVSS v3.1

6.3/ 10

CVSS v42.1

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector: Network
Complexity: Low
Privileges: Low
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: Low

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Affected

Source repos: github.com/RyuzakiShinji/biome-mcp-server/
github.com/user-attachments/files/25466715/biome-mcp-server_security_advisory.pdf

EPSS

Probability of exploitation in the next 30 days.

1.11%

VYPR risk score

Composite of severity, exploitation, and reach.

0.41medium

cvss	0.410
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')

CVE ID

CVE-2026-3680

Credits

YC
Yinci Chen (VulDB User)
reporter