---
title: "@libp2p/peer-store — CVE-2026-86039"
description: "An authentication bypass flaw affects the npm package @libp2p/peer-store. Affected versions: >= 8.0.0, < 12.0.24. Fixed from version 12.0.24. CVSS score 8.2."
canonical: https://inyourgeek.com/en/failles-de-securite/2026-09-17-cve-2026-86039
type: faille-de-securite
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-09-17
dateModified: 2026-09-17
---
# @libp2p/peer-store — CVE-2026-86039

An authentication bypass flaw affects the npm package @libp2p/peer-store. Affected versions: >= 8.0.0, < 12.0.24. Fixed from version 12.0.24. CVSS score 8.2.

## What to do

Update @libp2p/peer-store to 12.0.24 or later.

| Fact | Value |
| --- | --- |
| Package | @libp2p/peer-store |
| Ecosystem | npm (JavaScript) |
| Class | Authentication bypass |
| Affected versions | >= 8.0.0, < 12.0.24 |
| Fixed version | 12.0.24 |
| CVSS | 8.2 |
| CVE | CVE-2026-86039 |
| GHSA | GHSA-vrf4-mx87-p53w |
| Published on | September 17, 2026 |
| Severity | High |

## Sources

- [GitHub Security Advisory — GHSA-vrf4-mx87-p53w](https://github.com/advisories/GHSA-vrf4-mx87-p53w) — GitHub Security Advisories
- [NVD — CVE-2026-86039](https://nvd.nist.gov/vuln/detail/CVE-2026-86039) — NVD

---

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