CVE-2026-15751

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory (severity: LOW) published 2026-07-15. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

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

A security vulnerability has been detected in mastergo-design mastergo-magic-mcp up to 0.2.0. The affected element is the function execute of the file mastergo/component-workflow.md of the component mcp__getComponentGenerator. The manipulation of the argument rootPath leads to path traversal. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
5.3
EG Score
5.3(high)
EPSS
3.8%
KEV
Not listed

Published

July 14, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated Jul 15, 2026
No patch confirmed yet.
generic

[Potential Vulnerability] Unvalidated mcp__getComponentGenerator.rootPath Allows Attacker-Chosen Directory Creation and File Writes under .mastergo/ · Issue #90 · mastergo-design/mastergo-magic-mcp · GitHub

https://github.com/mastergo-design/mastergo-magic-mcp/issues/90
generic

GitHub - mastergo-design/mastergo-magic-mcp: MasterGo Magic MCP is a standalone MCP (Model Context Protocol) service designed to connect MasterGo design tools with AI models. · GitHub

https://github.com/mastergo-design/mastergo-magic-mcp/

Vendor Advisories for CVE-2026-15751(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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.

  1. 2026-07-15 23:10 UTCEG score recompute
  2. 2026-07-15 23:10 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 16:23 UTCNVD updateCVSS v4 → 1.9
  5. 2026-07-15 15:19 UTCMITRE cvelistV5CVSS v4 → 4.8
  6. 2026-07-14 23:23 UTCNVD updateCVSS v4 → 1.9
  7. 2026-07-14 22:25 UTCEG score recompute
  8. 2026-07-14 22:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15751?
CVE-2026-15751 is a medium vulnerability published on July 14, 2026. A security vulnerability has been detected in mastergo-design mastergo-magic-mcp up to 0.2.0. The affected element is the function execute of the file mastergo/component-workflow.md of the component mcpgetComponentGenerator. The manipulation of the argument rootPath leads to path traversal. An…
When was CVE-2026-15751 disclosed?
CVE-2026-15751 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15751 actively exploited?
CVE-2026-15751 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-15751?
CVE-2026-15751 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-15751?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15751, 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.

Dependency Blast Radius

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