Medium [CVE-2026-10609] Cluster Logging Operator creates and forwards ServiceAccount tokens without verifying CLF creator authorization
This medium-severity Red Hat Linux advisory covers CVE-2026-10609 affecting Logging Subsystem for Red Hat OpenShift.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
A missing authorization flaw was found in the OpenShift Cluster Logging Operator. The operator creates and forwards ServiceAccount tokens to output destinations without verifying that the ClusterLogForwarder creator has permission to use those credentials, allowing a delegated editor to exfiltrate SA tokens and escalate privileges.
In a typical OpenShift Logging deployment a user managing ClusterLogForwarder objects is also expected to manage secrets with storage credentials. A user with the rights to manage secrets can obtain a token for a SA in the namespace and as such the flaw does not result in any privilege gain or security boundary being broken.
The score assigned is reflective of a scenario where secret provisioning and CLF configuration are managed by separate roles. Red Hat severity: Moderate — CVSS 6.8 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N).
Weakness: CWE-862. Affected Red Hat products: Logging Subsystem for Red Hat OpenShift.
Red Hat does not currently list a fixing RHSA for this CVE.
Is CVE-2026-10609 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-10609 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-2026-10609?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
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 14 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Mitigation checklist
- Restrict ClusterLogForwarder write access to trusted administrators only. Review existing ClusterRoleBindings and RoleBindings that grant clusterlogforwarders write permission. Apply NetworkPolicy egress restrictions to the collector namespace to prevent collector pods from reaching arbitrary external endpoints. Deploy admission controller policies (OPA/Gatekeeper/Kyverno) to deny CLF resources whose outputs point to non-allowlisted URLs. Monitor for ClusterLogForwarder resources with outputs pointing to external URLs, especially those using token.from: serviceAccount.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
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