CVE-2026-47063

Analyzed Analyzed - Analysis Complete

Memory Corruption in Oracle Java SE

Publication date: 2026-07-21

Last updated on: 2026-08-03

Assigner: Oracle

Description

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). 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 creation, deletion or modification access to critical data or 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 7.5 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-21

Last Modified

2026-08-03

Generated

2026-08-11

AI Q&A

2026-07-22

EPSS Evaluated

2026-08-09

NVD

CVE-2026-47063

EUVD

EUVD-2026-46549

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	jre	1.8.0
oracle	jre	11.0.31
oracle	jre	17.0.19
oracle	jre	21.0.11
oracle	jre	25.0.3
oracle	jre	26.0.1
oracle	jre	1.8.0
oracle	jdk	1.8.0
oracle	jdk	11.0.31
oracle	jdk	17.0.19
oracle	jdk	21.0.11
oracle	jdk	25.0.3
oracle	jdk	26.0.1
oracle	jdk	1.8.0
oracle	graalvm	21.3.18
oracle	graalvm_for_jdk	17.0.19
oracle	graalvm_for_jdk	21.0.11

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Java SE, GraalVM for JDK, and GraalVM Enterprise Edition. It allows unauthenticated attackers to modify critical data via network access. The flaw exists in the Libraries component and can be exploited through APIs or web services.

Detection Guidance

This CVE affects Oracle Java SE, GraalVM for JDK, and GraalVM Enterprise Edition versions listed. Detection requires checking installed Java versions against the vulnerable ones. Use commands like 'java -version' or 'where java' on Windows/Linux to identify installed versions. Compare output against affected versions: 8u491, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1, or GraalVM variants.

Impact Analysis

An attacker could change or delete important data in systems running affected Java versions. This includes Java Web Start apps or applets that load untrusted code. The impact is limited to data integrity, not confidentiality or availability.

Compliance Impact

This vulnerability allows unauthorized modification of critical data, which could lead to violations of data integrity requirements in GDPR and HIPAA. Unauthorized data changes may result in non-compliance with these regulations.

Mitigation Strategies

Update affected Oracle Java SE, GraalVM for JDK, or GraalVM Enterprise Edition installations to versions 8u501, 11.0.32, 17.0.20, 21.0.12, 25.0.4, or 26.0.2 respectively. Remove or disable any sandboxed Java applications running untrusted code from the internet.

Hi! I’m here to help you understand CVE-2026-47063. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70