CVE-2025-2786: Tempo-operator: serviceaccount token exposure leading to token and subject access reviews in openshift tempo operator

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-02 · updated 2026-09-08
Weakness: CWE-200

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.

Affected products

Red Hat OpenShift distributed tracing 3: all versions
Red Hat OpenShift distributed tracing 3.5.3: all versions — fixed in rhosdt-3.5-1743162265, rhosdt-3.5-1744028971

How to fix

Upgrade to a fixed version: Red Hat OpenShift distributed tracing 3.5.3 rhosdt-3.5-1743162265, rhosdt-3.5-1744028971. Check the vendor advisory for mitigations.

References

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