Executive Summary

Tempo Operator flaw creates a ServiceAccount, ClusterRole, and ClusterRoleBinding when deploying TempoStack or TempoMonolithic. A user with namespace access can extract the ServiceAccount token and use TokenReview/SubjectAccessReview to discover other users’ permissions. While it does not enable privilege escalation or impersonation, it exposes sensitive permission data that could aid further attacks.

---

Authoritative CVE Metadata - CVSS Base Score: 4.3 (MEDIUM) - Published: 2025-04-02T11:15:39.300 - Last Modified: 2026-08-19T03:16:51.990

Original Description: A flaw was found in Tempo Operator, where it creates a ServiceAccount, ClusterRole, and ClusterRoleBinding when a user deploys a TempoStack or TempoMonolithic instance. This flaw allows a user with full access to their namespace to extract the ServiceAccount token and use it to submit TokenReview and SubjectAccessReview requests, potentially revealing information about other users' permissions. While this does not allow privilege escalation or impersonation, it exposes information that could aid in gathering information for further attacks.

"Sooner or later, those who win are those who think they can."

— Richard Bach