CVE-2026-47021

openjdk: OpenJDK: Enhance XBM image support (Oracle CPU 2026-07)

Published Jul 21, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4702-1 openjdk-11 security update
Debian DLA Debian DLA DLA-4703-1 openjdk-17 security update
Debian DSA Debian DSA DSA-6425-1 openjdk-21 security update
Debian DSA Debian DSA DSA-6431-1 openjdk-25 security update
Ubuntu USN Ubuntu USN USN-8681-1 OpenJDK 25 vulnerabilities
Ubuntu USN Ubuntu USN USN-8689-1 OpenJDK 26 vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Oracle graalvm Enterprise Edition
Vendors & Products Oracle graalvm Enterprise Edition
Type Values Removed Values Added
Title openjdk: OpenJDK: Enhance XBM image support (Oracle CPU 2026-07)
Weaknesses CWE-1333
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
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).
First Time appeared Oracle
Oracle graalvm
Oracle graalvm For Jdk
Oracle java Se
CPEs cpe:2.3:a:oracle:graalvm:21.3.18:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:graalvm_for_jdk:17.0.19:*:*:*:*:*:*:*
cpe:2.3:a:oracle:graalvm_for_jdk:21.0.11:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:11.0.31:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:17.0.19:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:21.0.11:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:25.0.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:26.0.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:8u491:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:8u491:*:*:*:enterprise_performance:*:*:*
Vendors & Products Oracle
Oracle graalvm
Oracle graalvm For Jdk
Oracle java Se
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
oracle
Published
Updated
Aug 12, 2026, 6:59 PM
Reserved
May 18, 2026, 3:55 PM
Status
Analyzed
Published
Jul 21, 2026, 10:17 PM
Modified
Aug 12, 2026, 8:17 PM
Severity
Moderate
Public date
Jul 21, 2026, 8:00 PM