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CVE-2026-61682

🗓️ 18 Sep 2026 16:11:46Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 66 Views🌐 WEB

Authenticated tenant impersonation and authorization bypass in kcp front-proxy via header injection.

Related
Detection
Affected
Refs
Paths
Vulners
Node
OR
kcpkcpRange<0.31.4
kcpkcpRange0.32.0–0.32.2
[
  {
    "vendor": "kcp-dev",
    "product": "kcp",
    "versions": [
      {
        "version": "< 0.31.4",
        "status": "affected"
      },
      {
        "version": ">= 0.32.0, < 0.32.2",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
X-Remote-Userheader/The kcp front-proxy fails to strip identity headers (X-Remote-User, X-Remote-Group, X-Remote-Extra-*) before forwarding requests to shards, allowing authenticated tenants to inject arbitrary identity assertions for cross-workspace impersonation and authorization bypass.CWE-290, CWE-302, CWE-348
X-Remote-Groupheader/The kcp front-proxy fails to strip identity headers (X-Remote-User, X-Remote-Group, X-Remote-Extra-*) before forwarding requests to shards, allowing authenticated tenants to inject arbitrary identity assertions for cross-workspace impersonation and authorization bypass.CWE-290, CWE-302, CWE-348
X-Remote-Extra-*header/The kcp front-proxy fails to strip identity headers (X-Remote-User, X-Remote-Group, X-Remote-Extra-*) before forwarding requests to shards, allowing authenticated tenants to inject arbitrary identity assertions for cross-workspace impersonation and authorization bypass.CWE-290, CWE-302, CWE-348

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24 Sep 2026 21:25Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.19.9
EPSS0.00384
SSVC
66