---
title: "rmcp — CVE-2026-63127"
description: "A security flaw affects the crates.io package rmcp. Affected versions: < 2.0.0. Fixed from version 2.0.0. CVSS score 8.2."
canonical: https://inyourgeek.com/en/failles-de-securite/2026-09-16-cve-2026-63127
type: faille-de-securite
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-09-16
dateModified: 2026-09-16
---
# rmcp — CVE-2026-63127

A security flaw affects the crates.io package rmcp. Affected versions: < 2.0.0. Fixed from version 2.0.0. CVSS score 8.2.

## What to do

Update rmcp to 2.0.0 or later.

| Fact | Value |
| --- | --- |
| Package | rmcp |
| Ecosystem | crates.io (Rust) |
| Class | Other |
| Affected versions | < 2.0.0 |
| Fixed version | 2.0.0 |
| CVSS | 8.2 |
| CVE | CVE-2026-63127 |
| GHSA | GHSA-33f5-2c5q-wgwj |
| Published on | September 16, 2026 |
| Severity | High |

## Sources

- [GitHub Security Advisory — GHSA-33f5-2c5q-wgwj](https://github.com/advisories/GHSA-33f5-2c5q-wgwj) — GitHub Security Advisories
- [NVD — CVE-2026-63127](https://nvd.nist.gov/vuln/detail/CVE-2026-63127) — NVD

---

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