Multicloud-operators-subscription: multicloud-operators-subscription: helmrelease chart applied with controller sa without gvk or namespace restriction (Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.62 % · percentile 50 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Awaiting Analysis
Description
A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a tenant, who has the ability to create HelmRelease custom resources (CRs), to bypass existing security controls. The system's HelmRelease controller processes Helm chart templates using its own elevated ServiceAccount privileges without proper validation. This enables the tenant to deploy arbitrary resources across the entire cluster, leading to a significant security compromise.
Weaknesses (CWE)
- CWE-441 — Unintended Proxy or Intermediary
References
- https://access.redhat.com/errata/RHSA-2026:60386
- https://access.redhat.com/errata/RHSA-2026:60387
- https://access.redhat.com/errata/RHSA-2026:60388
- https://access.redhat.com/errata/RHSA-2026:60389
- https://access.redhat.com/errata/RHSA-2026:60390
- https://access.redhat.com/errata/RHSA-2026:60391
- https://access.redhat.com/security/cve/CVE-2026-67567
- https://bugzilla.redhat.com/show_bug.cgi?id=2514224
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | redhat |
| CVSS 3.1 | CRITICAL 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · secalert@redhat.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-63589
- GCVE · GCVE-0-2026-67567
Affected products
| Product | Versions |
|---|---|
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.11 | unaffected 1787263584 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.13 | unaffected 1787263693 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.14 | unaffected 1787170830 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.15 | unaffected 1787240030 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.16 | unaffected 1787242321 < * |
| Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.17 | unaffected 1787242108 < * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |