---
id: "CVE-2026-89292"
kind: "vulnerability"
aliases: ["CVE-2026-89292"]
title: "Eclipse Mnestix Browser: unauthenticated attacker can steal backend API keys"
severity: "critical"
cvss: 9.2
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["asset-administration-shell", "eclipse", "mnestix-browser", "package"]
not_affected_if: ["version-outside-range"]
published_at: "2026-11-03T10:17:20+00:00"
first_seen_at: "2026-11-03T10:20:16+00:00"
updated_at: "2026-11-03T10:20:32+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89292", "first_seen_at": "2026-11-03T10:20:16+00:00"}]
---

# Eclipse Mnestix Browser: unauthenticated attacker can steal backend API keys

Eclipse Mnestix Browser versions 1.6.0 up to but excluding 2.3.0 let an unauthenticated attacker extract the MNESTIX_BACKEND_API_KEY for every configured Infrastructure. The stolen key grants access to the backend services those infrastructures connect to.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Mnestix Browser version; affected if it is `1.6.0` or later but below `2.3.0`.
- Confirm whether the `MNESTIX_BACKEND_API_KEY` setting is configured for any Infrastructure.

## Fix

- Upgrade Mnestix Browser to `2.3.0` or later.

## Timeline

- 2026-11-03T10:20:16+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-89292

## From the sources

In Eclipse Mnestix Browser versions 1.6.0 up until but excluding 2.3.0 it was possible for an unauthenticated attacker to exfiltrate the MNESTIX_BACKEND_API_KEY for all configured Infrastructures.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_