CVE-2026-19274

critical · 9.6

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.

9.6

CVSS

0.4%

EPSS (exploit prob.)

31st

EPSS percentile

2026-09-04

Published

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

Weaknesses

CWE-284

References

https://www.ibm.com/support/pages/node/7286070

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-19274