High [CVE-2026-27959] Host header injection vulnerability due to malformed HTTP Host header parsing
This high-severity Red Hat Linux advisory covers CVE-2026-27959 affecting Red Hat OpenShift AI 2.25, Red Hat OpenShift Container Platform 4.19, Red Hat Developer Hub.
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Summary
Host header injection vulnerability due to malformed HTTP Host header parsing. Red Hat rates this important (CVSS 8.2).
Weakness: CWE-20. Affected package(s): rhoai/odh-mod-arch-model-registry-rhel9:1776742141, rhoai/odh-dashboard-rhel9:1776742021, openshift4/ose-monitoring-plugin-rhel9:1775577192.
Resolved in Red Hat advisory RHSA-2026:10184 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat OpenShift AI 2.25; Red Hat OpenShift Container Platform 4.19; Red Hat Developer Hub.
- rhoai/odh-mod-arch-model-registry-rhel9:1776742141
- rhoai/odh-dashboard-rhel9:1776742021
- openshift4/ose-monitoring-plugin-rhel9:1775577192
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:10184
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:10184 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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