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.

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Tue, 08 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 08 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Title Server‑Side Request Forgery in Eclipse Che Dashboard Resolver Endpoint Exposes Internal Network Data
First Time appeared Eclipse
Eclipse che
Vendors & Products Eclipse
Eclipse che

Tue, 08 Sep 2026 09:30:00 +0000

Type Values Removed Values Added
Description 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.
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 6.3, 'vector': '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'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published:

Updated: 2026-09-08T12:22:14.772Z

Reserved: 2026-09-08T07:20:53.477Z

Link: CVE-2026-86590

cve-icon Vulnrichment

Updated: 2026-09-08T12:22:08.372Z

cve-icon NVD

Status : Deferred

Published: 2026-09-08T10:17:14.197

Modified: 2026-09-08T14:15:01.243

Link: CVE-2026-86590

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T10:30:05Z

Weaknesses