High [CVE-2026-34282] Enhance TLS connection handling (Oracle CPU 2026-04)
This high-severity Red Hat Linux advisory covers CVE-2026-34282 affecting Red Hat Build of OpenJDK 17.0.19, Red Hat Build of OpenJDK 17.0.9, Red Hat Build of OpenJDK 21.0.11.
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Summary
Enhance TLS connection handling (Oracle CPU 2026-04). Red Hat rates this important (CVSS 7.5).
Weakness: CWE-835. Affected package(s): java.
Resolved in Red Hat advisory RHSA-2026:11829 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Build of OpenJDK 17.0.19; Red Hat Build of OpenJDK 17.0.9; Red Hat Build of OpenJDK 21.0.11; Red Hat Build of OpenJDK 25.0.3; and 17 more.
- 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-21-openjdk-1:21.0.11.0.10-2.el10_2
- java-21-openjdk-1:21.0.11.0.10-1.el10_2
- java-21-openjdk-main-21.0.11.0.10-1.hum1
- java-11-openjdk-windows
- java-17-openjdk-portable
- java-21-openjdk-portable-main-21.0.11.0.10-2.hum1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:11829
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-2026:11829 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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