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OpenAdvisories
Critical · 9.9 CVE-2026-54680 EUVD-2026-50419GHSA-mjqf-28ph-426hGO-2026-6142

Logging operator has Fluentd configuration injection that allows remote code execution

Published Jul 29, 2026 · Updated Jul 30, 2026 · Assigned by GitHub_M

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

VendorProductAffectedFixed
kube-logging logging-operator < 6.6.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
SLES for SAP 16.0 govulncheck-vulndb 0.0.20260827T195228-160000.1.1 SUSE-SU-2026:23625-1
SLES 16.0 govulncheck-vulndb 0.0.20260827T195228-160000.1.1 SUSE-SU-2026:23625-1
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260827T195228-160000.1.1 openSUSE-SU-2026:21761-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/kube-logging/logging-operator < 0.0.0-20260608145523-cf437d7f1e05 0.0.0-20260608145523-cf437d7f1e05 GHSA-mjqf-28ph-426h

Advisories 2

References