Invalid DNS hostname returned via gethostbyaddr functions
Summary
Invalid DNS hostname returned via gethostbyaddr functions. Red Hat rates this low (CVSS 4). Weakness: CWE-838. Affected package(s): glibc-main, rhui5/haproxy-rhel9:1781525671, insights-proxy/insights-proxy-container-rhel9:1780420428, glibc, rhui5/installer-rhel9:1781525693, costmanagement/costmanagement-metrics-rhel9-operator:1780946239. Resolved in Red Hat advisory RHSA-2026:19061 — update the affected packages (`sudo dnf update`).
- glibc-main-2.42-11.1.hum1
- rhui5/haproxy-rhel9:1781525671
- insights-proxy/insights-proxy-container-rhel9:1780420428
- glibc-0:2.34-270.el9_8
- rhui5/installer-rhel9:1781525693
- costmanagement/costmanagement-metrics-rhel9-operator:1780946239
- glibc-0:2.39-121.el10_2
- rhui5/cds-rhel9:1781525684
- discovery/discovery-ui-rhel9:1782166952
- discovery/discovery-server-rhel9:1782159791
- rhui5/rhua-rhel9:1781525739
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
- RHSA-2026:19061
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:19061 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
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