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-2026:47735
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/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

30 Jul 2026, 01:16

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:48284 -

29 Jul 2026, 17:16

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:47949 - () https://access.redhat.com/errata/RHSA-2026:47974 -

29 Jul 2026, 16:17

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:47953 -

29 Jul 2026, 10:16

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:47735 -

28 Jul 2026, 22:17

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:47388 -

27 Jul 2026, 23:16

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:46885 -

20 Jul 2026, 08:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-20 08:16

Updated : 2026-07-30 01:16

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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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": "2026-07-30T01:16:25.540", "sourceIdentifier": "secalert@redhat.com"}