Vulnerabilities in pkg:npm/yii2-mcp-server

PACKAGE
Advisory Identifier: GHSA-gc8w-x73w-p4rh
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Advisory Summary

CVE-2026-7600 is a LOW (CVSS 6.3) yii2-mcp-server has a command injection vulnerability (CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')) affecting Yii2 mcp server libraries in the npm ecosystem. The issue involves yii2-mcp-server has a command injection issue. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/yii2-mcp-server

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/yii2-mcp-server. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-gc8w-x73w-p4rh CVE-2026-7600 LOW yii2-mcp-server has a Command Injection Issue

CVE-2026-7600 at a Glance

CVE Identifier CVE-2026-7600
GHSA Identifier GHSA-gc8w-x73w-p4rh
Severity LOW
CVSS v3.1 Base Score 6.3
CWE Classification CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Product Yii2 mcp server
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 6.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-7600

To remediate this vulnerability, upgrade all affected Yii2 mcp server dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

yii2-mcp-server fixed: Latest secure release 
npm install yii2-mcp-server@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls yii2-mcp-server

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-7600, inspect your project dependencies using npm:

npm ls yii2-mcp-server

Analyze the terminal output to locate any version of Yii2 mcp server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls yii2-mcp-server command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection'), where the product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. In Yii2 mcp server, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A flaw has been found in ArtMin96 yii2-mcp-server 1.0.2. This impacts the function yii_command_help/yii_execute_command of the file src/index.ts of the component MCP Interface. Executing a manipulation can lead to os command injection. The attack can be executed remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVE-2026-7600 Affected Yii2 mcp server Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
yii2-mcp-server
npm/yii2-mcp-server
npm
≤ 1.0.2

References

NVD — CVE-2026-7600 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7600
Yii2 mcp server Source Repository REPOSITORY
https://github.com/ArtMin96/yii2-mcp-server/issues/3
Yii2 mcp server Source Repository REPOSITORY
https://github.com/BruceJqs/public_exp/issues/29
Yii2 mcp server Source Repository REPOSITORY
https://github.com/ArtMin96/yii2-mcp-server
vuldb.com/submit/805613 WEB
https://vuldb.com/submit/805613
vuldb.com/vuln/360557 WEB
https://vuldb.com/vuln/360557
vuldb.com/vuln/360557/cti WEB
https://vuldb.com/vuln/360557/cti

Frequently Asked Questions

What is CVE-2026-7600?
CVE-2026-7600 is a security vulnerability in Yii2 mcp server involving yii2-mcp-server has a Command Injection Issue under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection').
Which Yii2 mcp server versions are affected?
Affected versions include releases prior to current release patches across affected packages: yii2-mcp-server.
What version fixes CVE-2026-7600?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is yii2-mcp-server affected?
Yes, yii2-mcp-server is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-7600?
CVE-2026-7600 has a CVSS v3.1 base score of 6.3 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2026-7600?
CVE-2026-7600 is classified under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') (The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.).
How can I check npm dependencies for CVE-2026-7600?
Run the dependency tree command: 'npm ls yii2-mcp-server'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gc8w-x73w-p4rh",
  "modified" : "2026-05-07T20:51:52Z",
  "published" : "2026-05-02T03:31:13Z",
  "aliases" : [ "CVE-2026-7600" ],
  "summary" : "yii2-mcp-server has a Command Injection Issue",
  "details" : "A flaw has been found in ArtMin96 yii2-mcp-server 1.0.2. This impacts the function yii_command_help/yii_execute_command of the file src/index.ts of the component MCP Interface. Executing a manipulation can lead to os command injection. The attack can be executed remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "yii2-mcp-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.0.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-7600"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ArtMin96/yii2-mcp-server/issues/3"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/BruceJqs/public_exp/issues/29"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ArtMin96/yii2-mcp-server"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/805613"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/360557"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/360557/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-77" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-07T20:51:52Z",
    "nvd_published_at" : "2026-05-02T01:16:00Z"
  }
}