CVE-2026-2178: Xcode mcp server Xcode-mcp-server Vulnerable To Command Injection Vulnerability

LOW
Advisory Identifier: GHSA-84fx-pwf3-7777
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CVSS 6.3
CWE-74 CWE-77
Published
Advisory Summary

CVE-2026-2178 is a LOW (CVSS 6.3) xcode-mcp-server vulnerable to command injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')) affecting Xcode mcp server libraries in the npm ecosystem. The issue involves xcode-mcp-server vulnerable to command injection. Remediation is available in the latest vendor maintenance releases.

CVE-2026-2178 at a Glance

CVE Identifier CVE-2026-2178
GHSA Identifier GHSA-84fx-pwf3-7777
Severity LOW
CVSS v3.1 Base Score 6.3
CWE Classification CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Product Xcode 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-2026-2178

To remediate this vulnerability, upgrade all affected Xcode 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.

xcode-mcp-server fixed: Latest secure release 
npm install xcode-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 xcode-mcp-server

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-2178, inspect your project dependencies using npm:

npm ls xcode-mcp-server

Analyze the terminal output to locate any version of Xcode 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 xcode-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-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), where the product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. In Xcode 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 vulnerability was found in r-huijts xcode-mcp-server up to f3419f00117aa9949e326f78cc940166c88f18cb. This affects the function registerXcodeTools of the file src/tools/xcode/index.ts of the component run_lldb. The manipulation of the argument args results in command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The patch is identified as 11f8d6bacadd153beee649f92a78a9dad761f56f. Applying a patch is advised to resolve this issue.

CVE-2026-2178 Affected Xcode mcp server Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
xcode-mcp-server
npm/xcode-mcp-server
npm
≤ 1.0.3

References

NVD — CVE-2026-2178 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2178
Xcode mcp server Source Repository REPOSITORY
https://github.com/r-huijts/xcode-mcp-server/issues/13
Xcode mcp server Source Repository REPOSITORY
https://github.com/r-huijts/xcode-mcp-server/issues/13#issue-3878065790
Security Fix Commit FIX COMMIT
https://github.com/r-huijts/xcode-mcp-server/commit/11f8d6bacadd153beee649f92a78a9dad761f56f
Xcode mcp server Source Repository REPOSITORY
https://github.com/r-huijts/xcode-mcp-server
vuldb.com/ WEB
https://vuldb.com/?ctiid.344881
vuldb.com/ WEB
https://vuldb.com/?id.344881
vuldb.com/ WEB
https://vuldb.com/?submit.749569

Frequently Asked Questions

What is CVE-2026-2178?
CVE-2026-2178 is a security vulnerability in Xcode mcp server involving xcode-mcp-server vulnerable to Command Injection under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection').
Which Xcode mcp server versions are affected?
Affected versions include releases prior to current release patches across affected packages: xcode-mcp-server.
What version fixes CVE-2026-2178?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is xcode-mcp-server affected?
Yes, xcode-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-2026-2178?
CVE-2026-2178 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-2026-2178?
CVE-2026-2178 is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.).
How can I check npm dependencies for CVE-2026-2178?
Run the dependency tree command: 'npm ls xcode-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-84fx-pwf3-7777",
  "modified" : "2026-03-06T23:36:02Z",
  "published" : "2026-02-08T21:30:18Z",
  "aliases" : [ "CVE-2026-2178" ],
  "summary" : "xcode-mcp-server vulnerable to Command Injection",
  "details" : "A vulnerability was found in r-huijts xcode-mcp-server up to f3419f00117aa9949e326f78cc940166c88f18cb. This affects the function registerXcodeTools of the file src/tools/xcode/index.ts of the component run_lldb. The manipulation of the argument args results in command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The patch is identified as 11f8d6bacadd153beee649f92a78a9dad761f56f. Applying a patch is advised to resolve this issue.",
  "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" : "xcode-mcp-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.0.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-2178"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/r-huijts/xcode-mcp-server/issues/13"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/r-huijts/xcode-mcp-server/issues/13#issue-3878065790"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/r-huijts/xcode-mcp-server/commit/11f8d6bacadd153beee649f92a78a9dad761f56f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/r-huijts/xcode-mcp-server"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?ctiid.344881"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?id.344881"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?submit.749569"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-74", "CWE-77" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-06T23:36:01Z",
    "nvd_published_at" : "2026-02-08T19:16:22Z"
  }
}