High [CVE-2026-41674] Arbitrary XML markup injection
This high-severity Red Hat Linux advisory covers CVE-2026-41674 affecting Red Hat Developer Hub 1.8, Red Hat Developer Hub 1.9, Red Hat OpenShift Container Platform 4.20.
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Summary
Arbitrary XML markup injection. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-91. Affected package(s): rhdh/rhdh-hub-rhel9:1779841586, rhdh/rhdh-hub-rhel9:1781187342, openshift4/ose-agent-installer-ui-rhel9:1779864090, openshift4/ose-agent-installer-ui-rhel9:1779252093.
Resolved in Red Hat advisory RHSA-2026:21703 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Developer Hub 1.8; Red Hat Developer Hub 1.9; Red Hat OpenShift Container Platform 4.20; Red Hat OpenShift Container Platform 4.21; and 2 more.
- rhdh/rhdh-hub-rhel9:1779841586
- rhdh/rhdh-hub-rhel9:1781187342
- openshift4/ose-agent-installer-ui-rhel9:1779864090
- openshift4/ose-agent-installer-ui-rhel9:1779252093
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:21703
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-2026:21703 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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