High [CVE-2026-46384] Integer Overflow in Avro Decoder
This high-severity Red Hat Linux advisory covers CVE-2026-46384 affecting Red Hat Advanced Cluster Management for Kubernetes 2.13, Red Hat Hardened Images, Red Hat Advanced Cluster Management for Kubernetes 2.11.
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Summary
Integer Overflow in Avro Decoder. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-190. Affected package(s): rhacm2/acm-grafana-rhel9:1782383730.
Resolved in Red Hat advisory RHSA-2026:30651 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.13; Red Hat Hardened Images; Red Hat Advanced Cluster Management for Kubernetes 2.11; Red Hat multicluster global hub 1.4.3; and 8 more.
- rhacm2/acm-grafana-rhel9:1782383730
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
- RHSA-2026:30651
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:30651 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
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