Live › vulnerability › CVE-2026-91400
Go to dashboardA flaw in the Sound component of Oracle Java SE and GraalVM lets an unauthenticated network attacker cause a partial denial of service. The advisory says it mainly matters for clients running untrusted sandboxed Java Web Start applications or applets.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
The sources say the flaw matters mainly for client machines that run untrusted sandboxed Java Web Start applications or applets and rely on the Java sandbox. Server deployments that run only trusted, administrator-installed code are stated not to be affected. Teams running server-side Java with trusted code can deprioritize this, but should still patch on the normal cycle.
No product ranges from the sources yet.
java -version and compare the output against the affected versions listed in the advisory: 8u503, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27.native-image --version or the JDK build against 17.0.20.1, 21.0.12.1, and 21.3.19.1.1.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Sound). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; 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 require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in 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 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. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 3.1 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L).
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NVD data is provided by NIST and is public domain · EPSS scores by FIRST, used with attribution. Posts quoted belong to their authors.