High7.5Red Hat & Ubuntu Linux
Enhance Certificate Checking (Oracle CPU 2026-01)
CVE-2026-21945 Published Jan 20, 2026
CVE-2026-21945
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Enhance Certificate Checking (Oracle CPU 2026-01). Red Hat rates this important (CVSS 7.5). Weakness: CWE-295. Affected package(s): java. Resolved in Red Hat advisory RHSA-2026:0895 — update the affected packages (`sudo dnf update`).
Affected versions
- java-1.8.0-ibm-1:1.8.0.8.60-1.el8_10
- java-11-openjdk-1:11.0.30.0.7-1.el7_9
- java-25-openjdk-1:25.0.2.0.10-1.el10
- java-1.8.0-openjdk-1:1.8.0.482.b08-1.el7_9
- java-25-openjdk-windows
- java-21-openjdk-portable
- java-21-openjdk-1:21.0.10.0.7-1.el9
- java-1.8.0-openjdk-1:1.8.0.482.b08-1.el9
- java-21-openjdk-windows
- java-25-openjdk-1:25.0.2.0.10-1.el9
- java-21-openjdk-1:21.0.10.0.7-1.el8
- java-21-openjdk-1:21.0.10.0.7-1.el10
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
Fixed versions
- RHSA-2026:0895
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:0895 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
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