synced 2 MIN AGO
01 Record

CVE-2026-16242

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

CriticalPUBLISHEDCNA: redhat
CNA base score9.4 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
View raw JSON

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.91% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 60.0% of scored records. A rank, not a probability.
NVD base score
9.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-09-14.
Red Hat severity
Critical. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-07-20 07:33Z3 MO AGO
Last updated
2026-09-14 14:46Z1 MO AGO
Reserved
2026-07-20
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Critical (CVSS 9.4)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Weaknesses
  • CWE-306Missing Authentication for Critical FunctionBase
Data version
5.2
Document digest
b6fea8b7b8538b0313e5ac0805080e3569cd2cd65188e802a019b57bca2b1c73

05 Affected products

VendorProductVersionsPlatforms
Red Hatmulticluster engine for Kubernetes 2.1Not specified—
Red Hatmulticluster engine for Kubernetes 2.11Not specified—
Red Hatmulticluster engine for Kubernetes 2.17Not specified—
Red Hatmulticluster engine for Kubernetes 2.6Not specified—
Red Hatmulticluster engine for Kubernetes 2.8Not specified—
Red Hatmulticluster engine for Kubernetes 2.9Not specified—
Red HatRed Hat OpenShift Container Platform 4.14Not specified—
Red HatRed Hat OpenShift Container Platform 4.15Not specified—
Red HatRed Hat OpenShift Container Platform 4.16Not specified—
Red HatRed Hat OpenShift Container Platform 4.17Not specified—
Red HatRed Hat OpenShift Container Platform 4.18Not specified—
Red HatRed Hat OpenShift Container Platform 4.19Not specified—
Red HatRed Hat OpenShift Container Platform 4.20Not specified—
Red HatRed Hat OpenShift Container Platform 4.21Not specified—
Red HatRed Hat OpenShift Container Platform 4.22Not specified—
Red HatLogging Subsystem for Red Hat OpenShiftNot specified—
Red HatMulticluster Engine for KubernetesNot specified—
Red HatOpenShift API for Data ProtectionNot specified—
Red HatRed Hat Advanced Cluster Management for Kubernetes 2Not specified—
Red HatRed Hat OpenShift Container Platform 4Not specified—

06 References