CVE-2026-54680
Critical
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.
SeverityCritical
CVSS9.9
Exploit probability—
ProductGithub.com/kube-logging/logging-operator
PublishedJul 29, 2026
First seenJul 29, 2026
Weakness typeCWE-74InjectionCWE-77Command injection
How to fix
Update
- github.com/kube-logging/logging-operator0.0.0-20260608145523-cf437d7f1e05 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/kube-logging/logging-operatorGo | v < 0.0.0-20260608145523-cf437d7f1e05 | 0.0.0-20260608145523-cf437d7f1e05 |
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