CVE-2026-47021 Details
Description
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: 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK: 17.0.19 and 21.0.11; Oracle GraalVM Enterprise Edition: 21.3.18. 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 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).
A vulnerability has been identified in Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition, specifically within the 2D component. The affected versions include Oracle Java SE 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, and 26.0.1, as well as Oracle GraalVM for JDK versions 17.0.19 and 21.0.11, and Oracle GraalVM Enterprise Edition 21.3.18. This vulnerability allows an unauthenticated attacker with network access to compromise these Java environments. Exploitation can lead to a partial denial-of-service, causing some disruption in service availability. The vulnerability can be triggered using APIs in the affected component, such as through a web service that provides data to these APIs. It also applies to Java deployments where untrusted code is executed, such as in sandboxed Java Web Start applications or applets, relying on the Java security sandbox.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.oracle.com/security-alerts/cpujul2026.html | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| oracle jre | 1.8.0 update491 11.0.31 17.0.19 21.0.11 25.0.3 26.0.1 |
CPE
Remediation
| |
| oracle jdk | 1.8.0 update491 11.0.31 17.0.19 21.0.11 25.0.3 26.0.1 |
CPE
Remediation
| |
| oracle graalvm | 21.3.18 |
CPE
Remediation
| |
| oracle graalvm for jdk | 17.0.19 21.0.11 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 12, 2026 | CVE Modified | CISA-ADP |
| Jul 31, 2026 | Initial Analysis | [email protected] |
| Jul 23, 2026 | CVE Modified | CISA-ADP |
| Jul 21, 2026 | New CVE Received | [email protected] |