CVE-2026-5603

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory (severity: LOW) published 2026-04-06. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
53%
KEV
Not listed

Published

April 5, 2026

Last Modified

July 24, 2026

Advisory Details (5)

Auto-updated Jul 26, 2026
Patch available. Sources: github_commit, github_pr.
generic
https://github.com/user-attachments/files/25895777/magento2-dev-mcp_bug.pdf
github_pr Patch Available

[WIP] Fix security vulnerability: Command injection in magento2-dev-mcp

Patch available: elgentos/magento2-dev-mcp 1.0.3 (PR #5 merged 2026-03-12)

https://github.com/elgentos/magento2-dev-mcp/pull/5
generic

Security Vulnerability: Command Injection in multiple magento2-dev-mcp tools due to unsafe use of child_process.execAsync · Issue #4 · elgentos/magento2-dev-mcp · GitHub

https://github.com/elgentos/magento2-dev-mcp/issues/4
github_commit Patch Available

commit aa1ffcc0aea1 (elgentos/magento2-dev-mcp)

Patch available: elgentos/magento2-dev-mcp 1.0.3 (contains commit aa1ffcc0aea1)

https://github.com/elgentos/magento2-dev-mcp/commit/aa1ffcc0aea1b212c69787391783af27df15ae9d
generic

GitHub - elgentos/magento2-dev-mcp: An MCP server to help with Magento 2 development · GitHub

https://github.com/elgentos/magento2-dev-mcp/

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
npm@elgentos/magento2-dev-mcp—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
@elgentos/magento2-dev-mcp———

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 17× in last 7d / 51× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 109 total refreshes for this CVE.

  1. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 09:06 UTCEG score recompute
  4. 2026-07-26 09:05 UTCGHSA enrichment
  5. 2026-07-25 14:18 UTCEPSS rescore
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  7. 2026-07-24 20:11 UTCNVD updateCVSS v4 → 1.9
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  49. 2026-06-11 21:43 UTCGHSA enrichment
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-5603?
CVE-2026-5603 is a medium vulnerability published on April 5, 2026. 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…
When was CVE-2026-5603 disclosed?
CVE-2026-5603 was first published in the National Vulnerability Database on April 5, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5603 actively exploited?
CVE-2026-5603 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 46.8% of all scored CVEs.
What is the CVSS score of CVE-2026-5603?
CVE-2026-5603 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-5603?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5603, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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