Description (CNA)
A flaw was found in Submariner. This vulnerability allows a malicious cluster (spoke) to redirect network traffic from other connected clusters (peer clusters) by publishing a specially crafted network endpoint. The system fails to properly validate the network subnets provided by the malicious cluster, enabling it to declare arbitrary network ranges. Consequently, all network traffic intended for these arbitrary ranges from peer clusters will be rerouted through the attacker's tunnel, potentially leading to unauthorized information disclosure or network disruption.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1790670439 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1790670231 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1790670243 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1790670508 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1790670233 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1790670912 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1790670254 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1788023916 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1788023940 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1788105072 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1788043964 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1788043961 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1788073481 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1788043970 before * |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2 | affected |
| Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2 | affected |
CWE
CWE-345
References
- https://access.redhat.com/errata/RHSA-2026:63016
- https://access.redhat.com/errata/RHSA-2026:85227
- https://access.redhat.com/security/cve/CVE-2026-66785
- https://bugzilla.redhat.com/show_bug.cgi?id=2507530
ADP enrichment
No English description supplied.
No references supplied.