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CVE-2026-16242

Hypershift: konnectivity proxy-server accepts agent connections without validating client certificates

CVSS 3.1 9.4 CRITICALCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-16242

Published

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.

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Affected versions, risk and source history

Exploitation and risk

Source status

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cve-program · CVE-2026-16242

Published

Hypershift: konnectivity proxy-server accepts agent connections without validating client certificates

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.

Source published
20 Jul 2026 07:33:16 UTC
Source modified
14 Sep 2026 14:46:53 UTC
Saved here
23 Oct 2026 15:48:27 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 9.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

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