CVE-2026-16242 – Hypershift: konnectivity proxy-server accepts agent connections without validating client certificates

CVE ID :CVE-2026-16242

Published : July 20, 2026, 8:16 a.m. | 1 hour, 26 minutes ago

Description :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

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