1. Ubuntu Security Notices
  2. USN-8783-1

USN-8783-1: OpenJDK 25 vulnerabilities

Publication date

21 September 2026

Overview

Several security issues were fixed in OpenJDK 25.

Releases

Packages

Details

Weber Leon discovered that the 2D component of OpenJDK 25 did not
correctly handle user authentication. A remote attacker could possibly
use this issue to cause a denial of service. (CVE-2026-70906)

Kai Aizen discovered that the Networking component of OpenJDK 25 did not
correctly handle user authentication. A remote attacker could possibly
use this issue to leak sensitive information. (CVE-2026-61308)

It was discovered that the JSSE component of OpenJDK 25 did not correctly
handle user authentication. A remote attacker could possibly use this
issue to cause a denial of service. (CVE-2026-70907)

It was discovered that the Security component of OpenJDK 25 did not
correctly handle user authentication. A remote attacker could possibly
use this issue to leak sensitive information. (

Weber Leon discovered that the 2D component of OpenJDK 25 did not
correctly handle user authentication. A remote attacker could possibly
use this issue to cause a denial of service. (CVE-2026-70906)

Kai Aizen discovered that the Networking component of OpenJDK 25 did not
correctly handle user authentication. A remote attacker could possibly
use this issue to leak sensitive information. (CVE-2026-61308)

It was discovered that the JSSE component of OpenJDK 25 did not correctly
handle user authentication. A remote attacker could possibly use this
issue to cause a denial of service. (CVE-2026-70907)

It was discovered that the Security component of OpenJDK 25 did not
correctly handle user authentication. A remote attacker could possibly
use this issue to leak sensitive information. (CVE-2026-60589)

Update instructions

After a standard system update you need to restart any running Java applications to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
26.04 LTS resolute openjdk-25-jdk –  25.0.4.1+1-1~26.04.4
openjdk-25-jdk-headless –  25.0.4.1+1-1~26.04.4
openjdk-25-jre –  25.0.4.1+1-1~26.04.4
openjdk-25-jre-headless –  25.0.4.1+1-1~26.04.4
openjdk-25-jre-zero –  25.0.4.1+1-1~26.04.4
24.04 LTS noble openjdk-25-jdk –  25.0.4.1+1-1~24.04.4
openjdk-25-jdk-headless –  25.0.4.1+1-1~24.04.4
openjdk-25-jre –  25.0.4.1+1-1~24.04.4
openjdk-25-jre-headless –  25.0.4.1+1-1~24.04.4
openjdk-25-jre-zero –  25.0.4.1+1-1~24.04.4
22.04 LTS jammy openjdk-25-jdk –  25.0.4.1+1-1~22.04.4
openjdk-25-jdk-headless –  25.0.4.1+1-1~22.04.4
openjdk-25-jre –  25.0.4.1+1-1~22.04.4
openjdk-25-jre-headless –  25.0.4.1+1-1~22.04.4
openjdk-25-jre-zero –  25.0.4.1+1-1~22.04.4

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References

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