Medium5.3Red Hat & Ubuntu Linux
Enhance certificate chain validation (Oracle CPU 2026-04)
CVE-2026-22021 Published Apr 21, 2026
CVE-2026-22021
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Enhance certificate chain validation (Oracle CPU 2026-04). Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-674. Affected package(s): java. Resolved in Red Hat advisory RHSA-2026:11829 — update the affected packages (`sudo dnf update`).
Affected versions
- java-1.8.0-openjdk-1:1.8.0.492.b09-1.el7_9
- java-25-openjdk-windows
- java-25-openjdk-main-25.0.3.0.9-1.hum1
- java-25-openjdk-portable
- java-17-openjdk-1:17.0.19.0.10-1.el8
- java-17-openjdk-1:17.0.19.0.10-1.el9
- java-25-openjdk-1:25.0.3.0.9-1.el10_2
- java-1.8.0-openjdk-windows
- java-21-openjdk-1:21.0.11.0.10-2.el10_2
- java-21-openjdk-1:21.0.11.0.10-1.el10_2
- java-1.8.0-openjdk-1:1.8.0.492.b09-2.el9
- java-21-openjdk-main-21.0.11.0.10-1.hum1
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:11829
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:11829 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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