High 7.1Published Mar 17, 2026

CVE-2026-32254Kube-router Proxy Module Blindly Trusts ExternalIPs/LoadBalancer IPs Enabling Cluster-Wide Traffic Hijacking and DNS DoS

Updated under an hour ago (Oct 27, 2026, 4:00 AM ET)

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It affects cloudnativelabs kube-router and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for cloudnativelabs kube-router

Exploited in the last 30 days

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.

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Weakness (CWE): CWE-284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

cloudnativelabs kube-router cloudnativelabs:kube_router (from the name)	before 2.8.0	CNA record
kube-router kube-router kube-router:kube-router	before 2.8.0	NVD

References

References

https://github.com/cloudnativelabs/kube-router/security/advisories/GHSA-phqm-jgc3-qf8g	x-refsource-confirm, exploit, mitigation, patch, vendor-advisory
https://github.com/cloudnativelabs/kube-router/commit/a1f0b2eea3ee0f66b9a5b5c49dcb714619ccd456	x-refsource-misc, patch
https://github.com/cloudnativelabs/kube-router/releases/tag/v2.8.0	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.