Vulnerability Details CVE-2026-32254
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 9.7%
CVSS Severity
CVSS v3 Score 7.1
References
- 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