---
id: CVE-2026-86590
title: >-
  In Eclipse Che versions 7.79.0 through 7.121.0, the dashboard backend's POST
  /dashboard/api/data/resolver endpoint passes a caller-supplied URL directly to
  an outbound HTTP GET request with no host filtering
summary: >-
  In Eclipse Che versions 7.79.0 through 7.121.0, the dashboard backend's POST
  /dashboard/api/data/resolver endpoint passes a caller-supplied URL directly to
  an outbound HTTP GET request with no host filtering. An authenticated user can
  ex…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N'
cwe:
  - CWE-918
vendor: Eclipse Foundation
product: Eclipse Che
affected:
  - eclipse_che >= 7.79.0 < 7.122.0
published: '2026-09-08'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T14:15:01.243'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86590'
references:
  - url: 'https://github.com/eclipse-che/che-dashboard/pull/1655'
    label: emo@eclipse.org
  - url: 'https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/617'
    label: emo@eclipse.org
  - url: 'https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/617'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T12:21:51.236460Z'
cvssSource: cna
epss: 0.00387
epssPercentile: 0.30012
ingestedAt: '2026-09-08T15:33:26.983Z'
---

## Overview

In Eclipse Che versions 7.79.0 through 7.121.0, the dashboard backend's POST /dashboard/api/data/resolver endpoint passes a caller-supplied URL directly to an outbound HTTP GET request with no host filtering. An authenticated user can exploit this server-side request forgery (SSRF) to read responses from internal network addresses, including the cloud instance metadata service (169.254.169.254), loopback interfaces, RFC-1918 private ranges, and in-cluster Kubernetes services. The operator-configured allowlist (spec.devEnvironments.allowedSources.urls) is not consulted. The vulnerability is fixed in version 7.122.0, which adds private-address blocking, IPv4-mapped IPv6 bypass prevention, operator allowlist enforcement, and disables HTTP redirects on the outbound request.

## Remediation

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