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CVE-2026-32254

Kube-router broken access control

7.1 HIGHPublic exploitEPSS 0.45%
  1. Published18 Mar 2026

Description

Kube-router is a turnkey solution for Kubernetes networking. Prior to version 2.8.0, Kube-router's proxy module does not validate externalIPs or loadBalancer IPs before programming them into the node's network configuration. Version 2.8.0 contains a patch for the issue. Available workarounds include enabling DenyServiceExternalIPs feature gate, deploying admission policy, restricting service creation RBAC, monitoring service changes, and applying BGP prefix filtering.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Affected products

Kube-router< 2.8.0

Remediation

Fixed in
Kube-router≥ 2.8.0

References

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Frequently asked

Is CVE-2026-32254 being actively exploited?

CVE-2026-32254 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.45%.

How severe is CVE-2026-32254?

CVE-2026-32254 has a CVSS 3.1 base score of 7.1, rated high. EPSS estimates a 0.45% probability of exploitation.

Which products are affected by CVE-2026-32254?

Affected products include Kube-router.

How do I fix CVE-2026-32254?

Upgrade affected software to a fixed version, for example Kube-router 2.8.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-32254 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.