CVE-2026-16242

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.

CVSS v3 9.4 CRITICAL

9.4^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:46885
https://access.redhat.com/errata/RHSA-2026:47388
https://access.redhat.com/errata/RHSA-2026:47728
https://access.redhat.com/errata/RHSA-2026:47735
https://access.redhat.com/errata/RHSA-2026:47949
https://access.redhat.com/errata/RHSA-2026:47953
https://access.redhat.com/errata/RHSA-2026:47974
https://access.redhat.com/errata/RHSA-2026:48284
https://access.redhat.com/errata/RHSA-2026:48657
https://access.redhat.com/errata/RHSA-2026:48670
https://access.redhat.com/errata/RHSA-2026:48676
https://access.redhat.com/errata/RHSA-2026:48693
https://access.redhat.com/errata/RHSA-2026:48699
https://access.redhat.com/errata/RHSA-2026:50758
https://access.redhat.com/errata/RHSA-2026:56789
https://access.redhat.com/errata/RHSA-2026:56912
https://access.redhat.com/security/cve/CVE-2026-16242
https://bugzilla.redhat.com/show_bug.cgi?id=2502690
https://github.com/openshift/hypershift/pull/9031

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-20 08:16

Updated : 2026-09-14 15:17

NVD link : CVE-2026-16242

Mitre link : CVE-2026-16242

CVE.ORG link : CVE-2026-16242

JSON object : View

Products Affected

No product.

CWE

CWE-306

Missing Authentication for Critical Function

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"packageName": "openshift4/ose-smb-csi-driver-rhel9-operator", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}]}], "published": "2026-07-20T08:16:29.833", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:46885", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:47388", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:47728", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:47735", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:47949", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:47953", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:47974", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:48284", "source": "secalert@redhat.com"}, {"url": 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"source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-306"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-09-14T15:17:04.540", "sourceIdentifier": "secalert@redhat.com"}