SEPTEMBER 17, 2026
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Case File

CVE-2026-86590

MEDIUM · CVSS 6.3 EPSS 0.37% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-08 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The vulnerability affects the Eclipse Che dashboard in versions 7.79.0 through 7.121.0, where the POST /dashboard/api/data/resolver endpoint allows authenticated users to perform server-side request forgery (SSRF) by passing unfiltered URLs, potentially exposing sensitive internal network data. This can lead to unauthorized access to cloud instance metadata and other internal services, making it critical for organizations using affected versions of Eclipse Che to prioritize updating to version 7.122.0 or later, which implements necessary security measures to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-86590
Severity
MEDIUM
CVSS
6.3
EPSS
0.37%
Kubernetes

Original NVD 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.