GHSA-43HH-68V6-MF36

Vulnerability from github – Published: 2026-07-20 09:31 – Updated: 2026-08-26 18:30
VLAI
Details

A flaw was found in the Konnectivity proxy-server configuration for hosted control planes. The agent-facing listener was started without --cluster-ca-cert (and without token-based agent authentication), so client certificates were not validated. A remote attacker who can reach the Konnectivity cluster endpoint could connect as an unauthenticated agent, join the routing pool, and potentially proxy, inspect, modify, or drop control-plane-to-node traffic.

Severity
9.4 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
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{
  "affected": [],
  "aliases": [
    "CVE-2026-16242"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-20T08:16:29Z",
    "severity": "CRITICAL"
  },
  "details": "A flaw was found in the Konnectivity proxy-server configuration for hosted control planes. The agent-facing listener was started without --cluster-ca-cert (and without token-based agent authentication), so client certificates were not validated. A remote attacker who can reach the Konnectivity cluster endpoint could connect as an unauthenticated agent, join the routing pool, and potentially proxy, inspect, modify, or drop control-plane-to-node traffic.",
  "id": "GHSA-43hh-68v6-mf36",
  "modified": "2026-08-26T18:30:35Z",
  "published": "2026-07-20T09:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16242"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openshift/hypershift/pull/9031"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502690"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-16242"
    },
    {
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      "url": "https://access.redhat.com/errata/RHSA-2026:56912"
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      "url": "https://access.redhat.com/errata/RHSA-2026:56789"
    },
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    },
    {
      "type": "WEB",
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    },
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:47974"
    },
    {
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      "url": "https://access.redhat.com/errata/RHSA-2026:47953"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:47949"
    },
    {
      "type": "WEB",
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}



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