UBUNTU-CVE-2026-91382: Medium severity ubuntu/openjdk-8 vulnerability
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: 2D). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. 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 6.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/openjdk-8to a version that resolves this vulnerability.Fixed in 8u512-b09~us1-0ubuntu1~16.04.1 - Upgrade
Upgrade
ubuntu/openjdk-ltsto a version that resolves this vulnerability.Fixed in 11.0.33+9-1ubuntu1~18.04.1 - Upgrade
Upgrade
ubuntu/openjdk-8to a version that resolves this vulnerability.Fixed in 8u512-b09~us1-0ubuntu1~18.04.1 - Upgrade
Upgrade
ubuntu/openjdk-ltsto a version that resolves this vulnerability.Fixed in 11.0.33+9-1ubuntu1~20.04.1 - Upgrade
Upgrade
ubuntu/openjdk-8to a version that resolves this vulnerability.Fixed in 8u512-b09~us1-0ubuntu1~20.04.1 - Upgrade
Upgrade
ubuntu/openjdk-25to a version that resolves this vulnerability.Fixed in 25.0.5.0.3+1-1~22.04.1 - Upgrade
Upgrade
ubuntu/openjdk-8to a version that resolves this vulnerability.Fixed in 8u512-b09~us1-0ubuntu1~22.04.1 - Upgrade
Upgrade
ubuntu/openjdk-ltsto a version that resolves this vulnerability.Fixed in 11.0.33+9-1ubuntu1~22.04.1 - Upgrade
Upgrade
ubuntu/openjdk-25to a version that resolves this vulnerability.Fixed in 25.0.5.0.3+1-1~24.04.1 - Upgrade
Upgrade
ubuntu/openjdk-8to a version that resolves this vulnerability.Fixed in 8u512-b09~us1-0ubuntu1~24.04.1 - Upgrade
Upgrade
ubuntu/openjdk-ltsto a version that resolves this vulnerability.Fixed in 11.0.33+9-1ubuntu1~24.04.1 - Upgrade
Upgrade
ubuntu/openjdk-25to a version that resolves this vulnerability.Fixed in 25.0.5.0.3+1-1~26.10.1 - Upgrade
Upgrade
ubuntu/openjdk-8to a version that resolves this vulnerability.Fixed in 8u512-b09~us1-0ubuntu1~26.10.1 - Upgrade
Upgrade
ubuntu/openjdk-ltsto a version that resolves this vulnerability.Fixed in 11.0.33+9-1ubuntu1~26.10.1 - Upgrade
Upgrade
ubuntu/openjdk-25to a version that resolves this vulnerability.Fixed in 25.0.5.0.3+1-1~26.04.1 - Upgrade
Upgrade
ubuntu/openjdk-8to a version that resolves this vulnerability.Fixed in 8u512-b09~us1-0ubuntu1~26.04.1 - Upgrade
Upgrade
ubuntu/openjdk-ltsto a version that resolves this vulnerability.Fixed in 11.0.33+9-1ubuntu1~26.04.1
Event History
Frequently Asked Questions
Which deployments are most exposed to this issue?
Network-reachable Java services that pass untrusted data to the affected 2D APIs are exposed, including web services that supply data to those APIs. Client-side Java deployments running sandboxed Java Web Start applications or sandboxed Java applets are also affected.
What does an attacker need to exploit it?
An unauthenticated attacker needs network access through one of multiple protocols and a path to provide data to the affected component APIs. Exploitation is rated difficult, but it does not require prior privileges or user interaction.
What could a successful attack do?
A successful attack can allow unauthorized creation, deletion, or modification of critical data or accessible product data. It can also cause a partial denial of service.
Which affected upstream versions are identified?
Affected Oracle Java SE versions are 8u503, 8u503-perf, 11.0.32.1, and 17.0.20.1. Affected GraalVM for JDK versions are 17.0.20.1 and 21.0.12.1, while GraalVM Enterprise Edition 21.3.19.1.1 is also identified.