CVE-2026-102406 Affecting kibana-9.5 package, versions <9.5.4-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.34% (26th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-KIBANA95-20948262
  • published15 Oct 2026
  • disclosed6 Oct 2026

Introduced: 6 Oct 2026

NewCVE-2026-102406  (opens in a new tab)

How to fix?

Upgrade Minimos:latest kibana-9.5 to version 9.5.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kibana-9.5 package and not the kibana-9.5 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana could lead to cross-tenant data interception. In this context, "tenant" refers to a user or team sharing the same Kibana deployment, not a separate Elastic Cloud organization or customer. Kibana's Fleet package installation process allowed a user holding delegated Fleet package-management privileges, without direct Elasticsearch administrative privileges, to claim a data stream identifier already in use by another tenant. Because ownership of that identifier was not verified before Fleet applied the uploaded package's generated index and ingest-pipeline settings to already-existing infrastructure, an attacker could redirect an existing tenant's data stream through infrastructure under their control. This exposed the affected tenant's subsequently ingested data to unauthorized disclosure and modification, and prevented that data from reaching its intended destination. Interception could continue even after the malicious package was removed, requiring separate remediation of the affected infrastructure.