Medium [CVE-2026-61308] Enhance HTTP Connections (2026-08 Security Update)
This medium-severity Red Hat Linux advisory covers CVE-2026-61308 affecting Red Hat Build of OpenJDK 17.0.20.1, Red Hat Build of OpenJDK 21.0.12.1, Red Hat Build of OpenJDK 25.0.4.1.
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Summary
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs.
This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 6.8 (Confidentiality impacts).
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N). Red Hat severity: Moderate — CVSS 6.8 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N).
Affected products named by the advisory: Red Hat Build of OpenJDK 17.0.20.1; Red Hat Build of OpenJDK 21.0.12.1; Red Hat Build of OpenJDK 25.0.4.1; Red Hat Build of OpenJDK 8u504; and 18 more.
- 11.0.32
- 17.0.20
- 21.0.12
- 25.0.4
- 26.0.2
Official advisory · high-confidence parse· fetched 59 minutes ago·verify at source
- java-17-openjdk-portable
- java-17-openjdk-windows
- java-21-openjdk-portable
- java-21-openjdk-windows
- java-25-openjdk-portable
- java-1.8.0-openjdk-portable
- java-1.8.0-openjdk-windows
- java-21-openjdk-1:21.0.12.1.1-1.2.el10
- java-25-openjdk-1:25.0.4.1.1-1.1.el10
- java-21-openjdk-1:21.0.12.1.1-1.1.el10
- java-1.8.0-openjdk-1:1.8.0.504.b01-1.1.el7_9
- java-21-openjdk-1:21.0.12.1.1-1.1.el8
- java-21-openjdk-1:21.0.12.1.1-1.2.el9
- java-25-openjdk-1:25.0.4.1.1-1.1.el9
- java-21-openjdk-1:21.0.12.1.1-1.1.el9
- java-11-openjdk-1:11.0.32.1.1-1.el7_9
- java-11-openjdk-1:11.0.32.1.1-1.el8
- java-11-openjdk-1:11.0.32.1.1-1.el9
- java-21-openjdk-portable-main-21.0.12.1.1-0.1.hum1
- java-25-openjdk-portable-main-25.0.4.1.1-0.1.hum1
- RHSA-2026:55782
- RHSA-2026:55783
- RHSA-2026:55788
- RHSA-2026:55789
- RHSA-2026:55799
- RHSA-2026:55776
- RHSA-2026:55777
- RHSA-2026:55787
- RHSA-2026:55798
- RHSA-2026:55774
- RHSA-2026:55778
- RHSA-2026:57175
- RHSA-2026:57177
Official advisory · high-confidence parse· fetched 59 minutes ago·verify at source
Mitigation
Upgrade to a fixed release: java-17-openjdk-portable, java-17-openjdk-windows, java-21-openjdk-portable, java-21-openjdk-windows, java-25-openjdk-portable, java-1.8.0-openjdk-portable. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 59 minutes ago·verify at source
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