Prototype pollution allows information disclosure and request manipulation
Summary
Prototype pollution allows information disclosure and request manipulation. Red Hat rates this important (CVSS 7.4). Weakness: CWE-915. Affected package(s): openshift-service-mesh/kiali-ossmc-rhel9:1782201851, advanced-cluster-security/rhacs-main-rhel8:1779371594, advanced-cluster-security/rhacs-main-rhel8:1779293013, openshift-service-mesh/kiali-rhel9:1782201812. Resolved in Red Hat advisory RHSA-2026:20889 — update the affected packages (`sudo dnf update`).
- openshift-service-mesh/kiali-ossmc-rhel9:1782201851
- advanced-cluster-security/rhacs-main-rhel8:1779371594
- advanced-cluster-security/rhacs-main-rhel8:1779293013
- openshift-service-mesh/kiali-rhel9:1782201812
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- RHSA-2026:20889
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:20889 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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