Live › vulnerability › CVE-2026-87290
Go to dashboardA flaw in the JAXP XML component of Oracle Java SE and GraalVM lets an unauthenticated attacker over the network reach confidential data through APIs that a web service feeds with input. The CVSS score is 5.9 with high confidentiality impact and no integrity or availability impact.
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.
Any Oracle Java SE, GraalVM for JDK or GraalVM Enterprise Edition install in the listed versions is in scope. Exposure is highest for web services that feed untrusted data into JAXP APIs, and for client Java deployments that run untrusted sandboxed applets or Web Start code. Teams on other JDK vendors or outside the listed versions can skip it.
No product ranges from the sources yet.
java -version and compare the build with the affected releases: 8u503, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27, and GraalVM 17.0.20.1, 21.0.12.1, 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: JAXP). 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 of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. 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 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
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