Vulnerability Description
Logging operator automates the deployment and configuration of Kubernetes logging pipelines. Prior to 6.6.0, the Fluentd configuration renderer FluentRender in pkg/sdk/logging/model/render/fluent.go writes CRD strings such as Flow record_transformer.records values directly into fluent.conf without escaping, allowing a user who can create Flow resources to inject a Fluentd <match **> block using @type exec and execute arbitrary commands inside the Fluentd aggregator. This issue is fixed in version 6.6.0.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/kube-logging/logging-operator/commit/cf437d7f1e056c78740bf571
- https://github.com/kube-logging/logging-operator/releases/tag/6.6.0
- https://github.com/kube-logging/logging-operator/security/advisories/GHSA-mjqf-2
- https://github.com/kube-logging/logging-operator/security/advisories/GHSA-mjqf-2
FAQ
What is CVE-2026-54680?
CVE-2026-54680 is a vulnerability with a CVSS score of 9.9 (CRITICAL). Logging operator automates the deployment and configuration of Kubernetes logging pipelines. Prior to 6.6.0, the Fluentd configuration renderer FluentRender in pkg/sdk/logging/model/render/fluent.go w...
How severe is CVE-2026-54680?
CVE-2026-54680 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-54680?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.