CVE-2026-54680CWE-74CWE-77command-injection

CVE-2026-54680

Critical · published July 29, 2026

CVSS v3.1
9.9
EPSS
1%
Percentile
55.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00785 · 55.6th percentile
Weaknesses
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'); CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2026-07-29T21:16Z
References (4)
https://github.com/kube-logging/logging-operator/commit/cf437d7f1e056c78740bf5716ac8bdebcf002425 · [email protected]https://github.com/kube-logging/logging-operator/releases/tag/6.6.0 · [email protected]https://github.com/kube-logging/logging-operator/security/advisories/GHSA-mjqf-28ph-426h · [email protected]https://github.com/kube-logging/logging-operator/security/advisories/GHSA-mjqf-28ph-426h · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 29 JUL 16:57Z
    Logging operator has Fluentd configuration injection that allows remote code execution
    cvelistv5