CVSS 3.1
7.1 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HCVE-2026-32254
High (7.1) in kube-router kube-router. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/cloudnativelabs/kube-router/v2 2.8.0.
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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-31)
- CWE
- CWE-284
- Published
- Modified
- Record from
- the NVD, synced
Affected
- kube-router:kube-router
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-phqm-jgc3-qf8g | Go | github.com/cloudnativelabs/kube-router/v2 | <2.8.0 | 2.8.0 |
| GO-2026-4724 | Go | github.com/cloudnativelabs/kube-router | all versions | no fix published |
| GO-2026-4724 | Go | github.com/cloudnativelabs/kube-router/v2 | <2.8.0 | 2.8.0 |
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