Medium6.1Red Hat Linux

Medium [CVE-2026-22028] Arbitrary script execution via JSON serialization protection bypass

This medium-severity Red Hat Linux advisory covers CVE-2026-22028 affecting openshift4/ose-agent-installer-ui-rhel9:1774977480, Red Hat Enterprise Linux.

CVE-2026-22028 Published Jan 8, 2026

CVE-2026-22028

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

Arbitrary script execution via JSON serialization protection bypass. Red Hat rates this moderate (CVSS 6.1).

Weakness: CWE-843. Affected package(s): openshift4/ose-agent-installer-ui-rhel9:1774977480.

Resolved in Red Hat advisory RHSA-2026:6564 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux.

Affected versions

openshift4/ose-agent-installer-ui-rhel9:1774977480

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:6564

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:6564 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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