# CVE-2026-86590

## Summary

- **CVE ID:** CVE-2026-86590
- **Severity:** MEDIUM
- **CVSS Score:** 6.3 (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
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 8, 2026

## 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.

## Affected Products

- Eclipse Foundation — Eclipse Che (7.79.0)

## References

- [CNA](https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/617)
- [CNA](https://github.com/eclipse-che/che-dashboard/pull/1655)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.37%
- **EPSS Percentile:** 30.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._