Medium [CVE-2025-2786] serviceaccount token exposure leading to token and subject access reviews in openshift tempo operator
This medium-severity Red Hat Linux advisory covers CVE-2025-2786 affecting Red Hat OpenShift distributed tracing 3.5.3.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published
Summary
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. Red Hat has evaluated this vulnerability and rated with a Moderate impact as the attacker is limited to read access and requires previous permissions to read the token and get access to the cluster metrics.
Red Hat severity: Moderate — CVSS 4.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-200.
Affected Red Hat products: Red Hat OpenShift distributed tracing 3.5.3; Red Hat OpenShift distributed tracing 3. Red Hat fixing advisory: RHSA-2025:3607, RHSA-2025:3740.
Is CVE-2025-2786 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2025-2786 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2025-2786?
Upgrade to a fixed release named by Red Hat:
- rhosdt/tempo-rhel8-operator:rhosdt-3.5-1743162265
- rhosdt/tempo-rhel8-operator:rhosdt-3.5-1744028971
- RHSA-2025:3607
- RHSA-2025:3740
Confirm against the vendor advisory before you patch.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
- rhosdt/tempo-rhel8-operator:rhosdt-3.5-1743162265
- rhosdt/tempo-rhel8-operator:rhosdt-3.5-1744028971
- RHSA-2025:3607
- RHSA-2025:3740
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
Mitigation checklist
- Currently, no mitigation is available for this vulnerability.
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
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