---
title: "@backstage/plugin-techdocs-node — CVE-2026-106558"
description: "An unsafe deserialisation flaw affects the npm package @backstage/plugin-techdocs-node. Affected versions: < 1.15.4. Fixed from version 1.15.4. CVSS score 8.8."
canonical: https://inyourgeek.com/en/failles-de-securite/2026-10-07-cve-2026-106558
type: faille-de-securite
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-10-07
dateModified: 2026-10-07
---
# @backstage/plugin-techdocs-node — CVE-2026-106558

An unsafe deserialisation flaw affects the npm package @backstage/plugin-techdocs-node. Affected versions: < 1.15.4. Fixed from version 1.15.4. CVSS score 8.8.

## What to do

Update @backstage/plugin-techdocs-node to 1.15.4 or later.

| Fact | Value |
| --- | --- |
| Package | @backstage/plugin-techdocs-node |
| Ecosystem | npm (JavaScript) |
| Class | Unsafe deserialisation |
| Affected versions | < 1.15.4 |
| Fixed version | 1.15.4 |
| CVSS | 8.8 |
| CVE | CVE-2026-106558 |
| GHSA | GHSA-qmw3-745m-w99g |
| Published on | October 7, 2026 |
| Severity | High |

## Sources

- [GitHub Security Advisory — GHSA-qmw3-745m-w99g](https://github.com/advisories/GHSA-qmw3-745m-w99g) — GitHub Security Advisories
- [NVD — CVE-2026-106558](https://nvd.nist.gov/vuln/detail/CVE-2026-106558) — NVD

---

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