CVE-2026-86590

Published: Sep 8, 2026Updated: Sep 8, 2026 Sources: CVE List NVDCWE-918

N/ACVSS

NVD MITRE

EPSS Score

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.

No summary for this CVE yet.

Weaknesses

CWE-918

Affected Products

Eclipse Foundation

oss-project·DE

Eclipse Che

OSS Libraries

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

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MITRE ATT&CK

2 techniques

Command and Control

Initial Access

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References

https://github.com/eclipse-che/che-dashboard/pull/1655

github.com

https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/617

gitlab.eclipse.org

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