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CVE-2026-66785Submariner: submariner: missing validation of remote endpoint subnets and clusterid enables cross-cluster traffic hijack
Descripción
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.
Debilidad (CWE):
CWE-345
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| acm | 2.16 | — | |
| acm | 2.17 | — | |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | all versions | |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.16 | all versions | |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.17 | all versions |
Referencias y parches
- RHSA-2026:63016 vendor-advisory
- RHSA-2026:85227 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-66785 vdb-entry
- RHBZ#2507530 issue-tracking