CVE-2026-32254
Severity CVSS v4.0:
Pending analysis
Type:
CWE-284
Improper Access Control
Publication date:
18/03/2026
Last modified:
18/03/2026
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.
Impact
Base Score 3.x
7.10
Severity 3.x
HIGH
References to Advisories, Solutions, and Tools
- https://github.com/cloudnativelabs/kube-router/commit/a1f0b2eea3ee0f66b9a5b5c49dcb714619ccd456
- https://github.com/cloudnativelabs/kube-router/releases/tag/v2.8.0
- https://github.com/cloudnativelabs/kube-router/security/advisories/GHSA-phqm-jgc3-qf8g
- https://github.com/cloudnativelabs/kube-router/security/advisories/GHSA-phqm-jgc3-qf8g



