CVE-2026-19274
Critical · 9.6CVSS
9.6
EPSS
0.2%
Published
Sep 4, 2026
CISA due date
—
The record
IBM Observability with Instana (Agent) Build 1.0.303 through 1.0.323 IBM Instana Agent Operator could allow an authenticated Kubernetes tenant to hijack or permanently destroy another tenant's cluster-level RBAC permissions, caused by cluster-scoped RBAC objects being keyed solely by the bare CR name with no namespace disambiguation, allowing a same-named `InstanaAgent` CR in an attacker-controlled namespace to silently overwrite the shared `ClusterRoleBinding` or delete it outright and revoke the victim agent's cluster monitoring access.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-114574 A security vulnerability has been detected in massCodeIO massCode 5.10. CWE-284
- CVE-2026-83395 Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise… CWE-284
- CVE-2026-112091 A flaw has been found in Dav-ee dairy-management-system… CWE-284
- CVE-2026-106580 ImageMagick is free and open-source software used for editing and manipulating digital… CWE-284
- CVE-2026-61700 MariaDB Connector/J is used to connect applications developed in Java to MariaDB and… CWE-284
- CVE-2026-86812 The WPCafe WordPress plugin before 3.0.18 does not correctly restrict access to a set of… CWE-284
- CVE-2026-85545 There is an Vulnerability in some HikCentral Access Control versions. CWE-284
- CVE-2026-78084 Joomla Extension - joomshaper.com - Missing Access Control in Gallery Image Management in… CWE-284