---
id: CVE-2026-89292
title: >-
  Unauthenticated SSRF with MNESTIX_BACKEND_API_KEY disclosure in Eclipse
  Mnestix Browser server actions for configured Infrastructures
summary: >-
  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.
severity: critical
cvss: 9.2
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-918
  - CWE-522
vendor: Eclipse Foundation
product: Eclipse Mnestix
affected:
  - eclipse_mnestix >= 1.6.0 < 2.3.0
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-11-03T20:19:11.802670Z'
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T20:19:27.496Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-89292'
references:
  - url: 'https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/773'
  - url: 'https://gitlab.eclipse.org/security/cve-assignment/-/work_items/302'
tags:
  - cve.org
epss: 0.00453
epssPercentile: 0.39462
ingestedAt: '2026-11-05T20:33:06.442Z'
---

## Overview

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.

## Affected

- `eclipse_mnestix >= 1.6.0 < 2.3.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.