Medium [CVE-2026-81872] Denial of Service via attacker-driven log emission
This medium-severity Red Hat Linux advisory covers CVE-2026-81872; related products: Red Hat Hardened Images, Assisted Installer for Red Hat OpenShift Container Platform 2, Logging Subsystem for Red Hat OpenShift.
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Summary
Denial of Service via attacker-driven log emission. Red Hat rates this moderate (CVSS 5.3).
Weakness: CWE-835. Red Hat lists fixing advisory RHSA-2026:68778 with package grafana13-2-main-13.2.1-0.5.hum1, opentelemetry-collector-contrib-main-0.161.0-0.1.hum1, opentofu1-12-main-1.12.6-0.3.hum1, distribution-main-3.1.1-0.2.hum1.
Affected products named by the advisory: Red Hat Hardened Images; Assisted Installer for Red Hat OpenShift Container Platform 2; Logging Subsystem for Red Hat OpenShift; Multiarch Tuning Operator; and 22 more.
Affected products named by the advisory: Multicluster Engine for Kubernetes; Multicluster Global Hub; OpenShift Developer Tools and Services; OpenShift Lightspeed; and 18 more.
- < 0.21.0
Official advisory · high-confidence parse· fetched 11 days ago·verify at source
- grafana13-2-main-13.2.1-0.5.hum1
- opentelemetry-collector-contrib-main-0.161.0-0.1.hum1
- opentofu1-12-main-1.12.6-0.3.hum1
- distribution-main-3.1.1-0.2.hum1
- helm4-main-4.3.0-0.2.hum1
- grafana13-1-main-13.1.6-0.2.hum1
- caddy-main-2.11.4-0.4.hum1
- jaeger-main-2.20.0-0.9.hum1
- helm3-main-3.22.0-0.2.hum1
- opentelemetry-collector-k8s-main-0.161.0-0.1.hum1
- grafana12-4-main-12.4.10-0.6.hum1
- opentelemetry-collector-main-0.161.0-0.1.hum1
- RHSA-2026:68778
Official advisory · high-confidence parse· fetched 11 days ago·verify at source
Mitigation
Upgrade to a fixed release: grafana13-2-main-13.2.1-0.5.hum1, opentelemetry-collector-contrib-main-0.161.0-0.1.hum1, opentofu1-12-main-1.12.6-0.3.hum1, distribution-main-3.1.1-0.2.hum1, helm4-main-4.3.0-0.2.hum1, grafana13-1-main-13.1.6-0.2.hum1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 11 days ago·verify at source
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