CVE-2026-54680 PUBLISHED

Logging operator has Fluentd configuration injection that allows remote code execution

Assigner: GitHub_M
Reserved: 15.06.2026 Published: 29.07.2026 Updated: 30.07.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.9

Product Status

Vendor kube-logging
Product logging-operator
Versions
  • Version < 6.6.0 is affected

References

Problem Types

  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE
  • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') CWE