# kube-router: GoBGP gRPC Admin Port Exposed on Node Primary IP Without Authentication, Allowing Cluster-Wide BGP Route Injection

Source: https://junglewise.ai/threats/kube-router-gobgp-grpc-admin-port-exposed-on-node-primary-ip-without-65709407  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-06  
License: CC BY 4.0 with a link back

Severity: low · CVSS 3.1 · Published 2026-05-06

kube-router: GoBGP gRPC Admin Port Exposed on Node Primary IP Without Authentication, Allowing Cluster-Wide BGP Route Injection

Technologies: [github.com/cloudnativelabs/kube-router (Go)](https://junglewise.ai/threats/technologies/github-com-cloudnativelabs-kube-router). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Low severity, with a CVSS score of 3.1, published 6 May 2026.

**Which products and versions are affected?** github.com/cloudnativelabs/kube-router (Go) SEMVER:introduced=0,fixed=2.9.0.

**Is there a fix for This vulnerability?** Yes. github.com/cloudnativelabs/kube-router (Go): upgrade to 2.9.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run github.com/cloudnativelabs/kube-router (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/cloudnativelabs/kube-router (Go): upgrade to 2.9.0 or later

  ```sh
  go get github.com/cloudnativelabs/kube-router@v2.9.0
  ```


## Affected products

- github.com/cloudnativelabs/kube-router (Go) SEMVER:introduced=0,fixed=2.9.0

## Related threats

- [GO-2026-5653 - kube-router: GoBGP gRPC Admin Port Exposed on Node Primary IP Without Authentication, Allowing…](https://junglewise.ai/threats/go-2026-5653-kube-router-gobgp-grpc-admin-port-exposed-on-node-primary-42aadd93)
- [GO-2026-5354 - kube-router: BGP Peer Passwords Exposed in Logs at Verbose Logging Level in github.com/cloudnativelabs/kube-router](https://junglewise.ai/threats/go-2026-5354-kube-router-bgp-peer-passwords-exposed-in-logs-at-verbose-7a405f9a)
- [Kube-router Proxy Module Blindly Trusts ExternalIPs/LoadBalancer IPs Enabling Cluster-Wide Traffic Hijacking and DNS DoS](https://junglewise.ai/threats/cve-2026-32254-kube-router-proxy-module-blindly-trusts-externalips-loadbalancer)