---
title: "mcp-from-openapi — CVE-2026-59973"
description: "A server-side request forgery flaw affects the npm package mcp-from-openapi. Affected versions: >= 2.3.0, < 2.5.0. Fixed from version 2.5.0. CVSS score 8.5."
canonical: https://inyourgeek.com/en/failles-de-securite/2026-09-11-cve-2026-59973
type: faille-de-securite
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-09-11
dateModified: 2026-09-11
---
# mcp-from-openapi — CVE-2026-59973

A server-side request forgery flaw affects the npm package mcp-from-openapi. Affected versions: >= 2.3.0, < 2.5.0. Fixed from version 2.5.0. CVSS score 8.5.

## What to do

Update mcp-from-openapi to 2.5.0 or later.

| Fact | Value |
| --- | --- |
| Package | mcp-from-openapi |
| Ecosystem | npm (JavaScript) |
| Class | Server-side request forgery |
| Affected versions | >= 2.3.0, < 2.5.0 |
| Fixed version | 2.5.0 |
| CVSS | 8.5 |
| CVE | CVE-2026-59973 |
| GHSA | GHSA-65h7-9wrw-629c |
| Published on | September 11, 2026 |
| Severity | High |

## Sources

- [GitHub Security Advisory — GHSA-65h7-9wrw-629c](https://github.com/advisories/GHSA-65h7-9wrw-629c) — GitHub Security Advisories
- [NVD — CVE-2026-59973](https://nvd.nist.gov/vuln/detail/CVE-2026-59973) — NVD

---

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