CVE-2026-54680

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 v3 9.9 CRITICAL

9.9^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.1 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/kube-logging/logging-operator/commit/cf437d7f1e056c78740bf5716ac8bdebcf002425
https://github.com/kube-logging/logging-operator/releases/tag/6.6.0
https://github.com/kube-logging/logging-operator/security/advisories/GHSA-mjqf-28ph-426h
https://github.com/kube-logging/logging-operator/security/advisories/GHSA-mjqf-28ph-426h

Configurations

No configuration.

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) El operador de logging automatiza el despliegue y la configuración de las canalizaciones de registro de Kubernetes. Antes de la versión 6.6.0, el renderizador de configuración de Fluentd, FluentRender, en pkg/SDK/logging/model/render/fluent.go, escribe cadenas CRD como los valores de Flow record_transformer.records directamente en fluent.conf sin escapar, permitiendo a un usuario que puede crear recursos Flow inyectar un bloque Fluentd <match **> usando @type exec y ejecutar comandos arbitrarios dentro del agregador de Fluentd. Este problema está solucionado en la versión 6.6.0.

Information

Published : 2026-07-29 17:16

Updated : 2026-10-24 13:10

NVD link : CVE-2026-54680

Mitre link : CVE-2026-54680

CVE.ORG link : CVE-2026-54680

JSON object : View

Products Affected

No product.

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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