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CVE-2026-32254

HIGH

7.1

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.

CVE Details

CVSS v3.1 Score7.1

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/18/2026

Last Modified3/19/2026

Sourcenvd

Honeypot Sightings0

Affected Products

kube-router:kube-router

Weaknesses (CWE)

CWE-284

References

https://github.com/cloudnativelabs/kube-router/commit/a1f0b2eea3ee0f66b9a5b5c49dcb714619ccd456(security-advisories@github.com)

https://github.com/cloudnativelabs/kube-router/releases/tag/v2.8.0(security-advisories@github.com)

https://github.com/cloudnativelabs/kube-router/security/advisories/GHSA-phqm-jgc3-qf8g(security-advisories@github.com)

https://github.com/cloudnativelabs/kube-router/security/advisories/GHSA-phqm-jgc3-qf8g(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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