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CVE-2026-86590

Quick assessment

Affected
Eclipse Foundation Eclipse Che
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Eclipse Che 7.79.0 至 7.121.0 版本中，仪表板后端的 端点将调用者提供的 URL 直接用于发起出站 HTTP GET 请求，且未进行任何主机过滤。经过认证的用户可利用此服务器端请求伪造（SSRF）漏洞，读取来自内网地址的响应，包括云实例元数据服务（169.254.169.254）、回环接口、RFC-1918 私有地址段，以及集群内的 Kubernetes 服务。该漏洞未参考由运维人员配置的白名单（ ）。此漏洞已在 7.122.0 版本中修复，该版本新增了私有地址阻断、防止通过 IPv6

CVSS 6.3 · Medium

Possible ATT&CK Techniques 1 AI

T1041 · Exfiltration Over C2 Channel
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I. Basic Information for CVE-2026-86590

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Eclipse Foundation Eclipse Che 7.79.0 ~ 7.122.0 -

II. Public POCs for CVE-2026-86590

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III. Intelligence Information for CVE-2026-86590

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Patches & Fixes for CVE-2026-86590 (1)

Vendor Advisories for CVE-2026-86590 (1)

IV. Related Vulnerabilities

Same product: Eclipse Che
Same vendor: Eclipse Foundation
Same weakness: CWE-918

V. Comments for CVE-2026-86590

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