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Low, CVSS 1.9amended

@elgentos/magento2-dev-mcp vulnerable to command injection

CVE-2026-5603GHSA-xqv9-qr76-hfq2

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

Affected packages

  • npm @elgentos/magento2-dev-mcp

    Affected
    <= 1.0.2
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
1.9 · CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P · score source
EPSS
  • CVE-2026-5603: 0.91% estimated exploitation activity in the next 30 days; percentile 60.01 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

A vulnerability was identified in elgentos magento2-dev-mcp up to 1.0.2. The affected element is the function executeMagerun2Command of the file src/index.ts. Such manipulation leads to os command injection. An attack has to be approached locally. The exploit is publicly available and might be used. The name of the patch is aa1ffcc0aea1b212c69787391783af27df15ae9d. A patch should be applied to remediate this issue.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-xqv9-qr76-hfq2

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-xqv9-qr76-hfq2

Agent brief

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# Patch Next advisory brief: CVE-2026-5603

Advisory: @elgentos/magento2-dev-mcp vulnerable to command injection
IDs: CVE-2026-5603, GHSA-xqv9-qr76-hfq2
Record: https://patchnext.com/advisories/cve-2026-5603 (revision 3, source checked 26 Oct 2026, 12:47 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 1.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm @elgentos/magento2-dev-mcp: affected <= 1.0.2

## Suggested inspection (read-only)
- `npm ls @elgentos/magento2-dev-mcp --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on @elgentos/magento2-dev-mcp.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-xqv9-qr76-hfq2 (OSV record GHSA-xqv9-qr76-hfq2 lists affected ranges: npm @elgentos/magento2-dev-mcp >=0 <=1.0.2)
- Verified: https://github.com/advisories/GHSA-xqv9-qr76-hfq2 (GitHub-reviewed advisory GHSA-xqv9-qr76-hfq2 lists affected ranges: npm @elgentos/magento2-dev-mcp >=0 <=1.0.2)

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