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CVE-2026-61682— kcp front-proxy 身份伪造漏洞

一分钟漏洞结论

影响对象
kcp-dev kcp
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

kcp is a Kubernetes-like control plane for form-factors and use-cases beyond Kubernetes and container workloads. Prior to 0.31.4 and 0.32.2, the kcp front-proxy does not remove inbound X-Remote-User, X-Remote-Group, or X-Remote-Extra-* identity headers before

CVSS 9.9 · Critical
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一、 漏洞 CVE-2026-61682 基础信息

漏洞信息

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Vulnerability Title
kcp front-proxy does not strip inbound X-Remote-* identity headers, allowing any authenticated client to inject groups/warrants and impersonate system:masters in any workspace
来源: CVE Program / CVE List V5
Vulnerability Description
kcp is a Kubernetes-like control plane for form-factors and use-cases beyond Kubernetes and container workloads. Prior to 0.31.4 and 0.32.2, the kcp front-proxy does not remove inbound X-Remote-User, X-Remote-Group, or X-Remote-Extra-* identity headers before forwarding requests to shards. Any authenticated tenant can inject X-Remote-Group: system:masters, authorization.kcp.io/warrant, authentication.kcp.io/scopes, or a group used for per-workspace required-group gating, and the shard trusts these values as authenticated identity assertions. This allows cross-workspace impersonation, authorization bypass, and arbitrary reading, writing, or deletion of resources, secrets, RBAC data, APIExports, APIBindings, and LogicalClusters. This issue is fixed in versions 0.31.4 and 0.32.2.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
kcp-dev kcp < 0.31.4 -

二、漏洞 CVE-2026-61682 的公开POC

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三、漏洞 CVE-2026-61682 的情报信息

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CVE-2026-61682 补丁与修复 (2)

CVE-2026-61682 其他参考 (3)

IV. Related Vulnerabilities

Same product: kcp
Same vendor: kcp-dev
Same weakness: CWE-290

V. Comments for CVE-2026-61682

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