CVE-2026-54680 Details
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.
A remote code execution vulnerability has been identified in the Kube-Logging Logging Operator, specifically in versions prior to 6.6.0. The issue arises in the Fluentd configuration renderer, which writes Custom Resource Definition (CRD) strings directly into the Fluentd configuration file without proper escaping. This flaw allows users who can create Flow resources to inject arbitrary Fluentd configuration, including execution commands, into the Fluentd aggregator. The vulnerability is particularly critical as it can be exploited to execute commands on the system where Fluentd is running, potentially leading to unauthorized access or data manipulation.
Users can update to Kube-Logging Logging Operator version 6.6.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 29, 2026CISA-ADP
Assessed Jul 30, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/kube-logging/logging-operator/security/advisories/GHSA-mjqf-28ph-426h | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/kube-logging/logging-operator/commit/cf437d7f1e056c78740bf5716ac8bdebcf002425 | [email protected] | Source CodeVendor |
| https://github.com/kube-logging/logging-operator/releases/tag/6.6.0 | [email protected] | Release NotesVendor |
| https://github.com/kube-logging/logging-operator/security/advisories/GHSA-mjqf-28ph-426h | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-74 | Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | [email protected] |
| CWE-77 | Improper Neutralization of Special Elements used in a Command ('Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Kube-logging Logging operator | <= 6.5.2 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 30, 2026 | CVE Modified | CISA-ADP |
| Jul 29, 2026 | New CVE Received | [email protected] |