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MEDIUM severity

CVE-2026-7600 — yii2-mcp-server

MEDIUM

CVE-2026-7600 is a medium-severity (CVSS 6.3) CWE-77 vulnerability in yii2-mcp-server. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

yii2-mcp-server has a Command Injection Issue

Published
Updated
Affected
1 pkg
Patched
None yet
Exploits
None indexed
Exploitation data as of Oct 29, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-7600.

EPSS Exploitation Probability

via FIRST.org ↗
1.2%probability of exploitation in next 30 days
Lower Risk-0.60%
Lower risk than most CVEs69th percentile — riskier than 69% of all scored CVEsHighest risk
0.61%1.18%1.75%2.32%1.2%1.2%Jun 26Sep 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

0other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
yii2-mcp-servernpm
22downloads / week

Description

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.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
📦npmyii2-mcp-serverall versionsNo fix

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for yii2-mcp-server, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of yii2-mcp-server for CVE-2026-7600. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Frequently Asked Questions

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.
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CVE-2026-7600: yii2-mcp Command Injection (Medium 6.3)