# CVE-2026-54680

## Summary

- **CVE ID:** CVE-2026-54680
- **Severity:** CRITICAL
- **CVSS Score:** 9.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-74, CWE-77
- **Published:** Jul 29, 2026
- **Last Modified:** Jul 30, 2026

## 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.

## Affected Products

- kube-logging — logging-operator (< 6.6.0)

## References

- [CNA](https://github.com/kube-logging/logging-operator/security/advisories/GHSA-mjqf-28ph-426h)
- [CNA](https://github.com/kube-logging/logging-operator/commit/cf437d7f1e056c78740bf5716ac8bdebcf002425)
- [CNA](https://github.com/kube-logging/logging-operator/releases/tag/6.6.0)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.53%
- **EPSS Percentile:** 43.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._