The Elastic Cloud on Kubernetes (ECK) operator reads a list of secret references from an annotation on secrets it manages, and it accepts the namespace recorded in each reference without validating that the reference is authorized for the resource being reconciled. A user whose Kubernetes permissions are limited to their own namespace can write that annotation, trigger a reconcile, and cause the operator to use its cluster-wide secret permissions to copy the contents of a secret from any other namespace into a secret the user can read.
Metrics
Affected Vendors & Products
References
History
Thu, 13 Aug 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Thu, 13 Aug 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Elastic Cloud on Kubernetes (ECK) operator reads a list of secret references from an annotation on secrets it manages, and it accepts the namespace recorded in each reference without validating that the reference is authorized for the resource being reconciled. A user whose Kubernetes permissions are limited to their own namespace can write that annotation, trigger a reconcile, and cause the operator to use its cluster-wide secret permissions to copy the contents of a secret from any other namespace into a secret the user can read. | |
| Title | Unintended Proxy or Intermediary in Elastic Cloud on Kubernetes Leading to Cross-Namespace Secret Disclosure | |
| Weaknesses | CWE-441 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: elastic
Published:
Updated: 2026-08-13T20:28:02.908Z
Reserved: 2026-08-10T11:17:35.480Z
Link: CVE-2026-72640
Updated: 2026-08-13T20:27:59.371Z
Status : Received
Published: 2026-08-13T20:17:24.550
Modified: 2026-08-13T21:18:09.483
Link: CVE-2026-72640
No data.
OpenCVE Enrichment
Updated: 2026-08-13T21:15:03Z