REDHAT-BUG-2557385: Medium severity Oracle Java SE vulnerability

Published Oct 21, 2026
·
Updated

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Utility). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable 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 update, insert or delete access to some of 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:L/PR:N/UI:N/S:U/C:N/I:L/A:L).

Affected Software

3 affected components
Oracle Java SE=8u503, =8u503-perf, =11.0.32.1
Oracle GraalVM for JDK=17.0.20.1, =21.0.12.1
Oracle GraalVM Enterprise Edition=21.3.19.1.1

Event History

Oct 21, 2026
Data Sourced
via Red Hat·12:04 AM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

Who can exploit this issue?

An unauthenticated attacker with network access can exploit it through multiple protocols. Exploitation can occur when a web service supplies attacker-controlled data to APIs in the affected Utility component.

2

Are client-side Java deployments affected?

Yes. The issue also applies to Java client deployments that load and run untrusted code, typically sandboxed Java Web Start applications or sandboxed Java applets.

3

What could a successful attack do?

A successful attack may allow unauthorized update, insertion, or deletion of accessible data in the affected product. It may also cause a partial denial of service.

4

Which versions are identified as affected?

The affected versions are Oracle Java SE 8u503, 8u503-perf, and 11.0.32.1; Oracle GraalVM for JDK 17.0.20.1 and 21.0.12.1; and Oracle GraalVM Enterprise Edition 21.3.19.1.1.

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