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.
- Score
- CVSS 3.1 9.4 Critical
- Status
- Awaiting Analysis - secalert@redhat.com
- Published
- 2026-07-20
- Last modified
- 2026-09-14
- Weaknesses
- CWE-306
Affected products
- Acm (Redhat)
- Logging (Redhat)
- Multicluster Engine (Redhat)
- Openshift (Redhat)
- Openshift Api Data Protection (Redhat)
References
- 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
