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: 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. 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 update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data as well as unauthorized read access to a subset of 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 6.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).
Published: 2026-10-20
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized Data Access and Modification
Action: Apply Patch
AI Analysis

Impact

The weakness allows an unauthenticated attacker with network access to exploit APIs in the Java SE, GraalVM for JDK, and GraalVM Enterprise Edition libraries. Successful exploitation can result in unauthorized update, insert, or delete operations on accessible data and read access to a subset of that data, impacting confidentiality and integrity. The CVSS 3.1 Base Score of 6.5 reflects moderate overall risk with low but present impact on both confidentiality and integrity.

Affected Systems

Oracle GraalVM Enterprise Edition, Oracle GraalVM for JDK, and Oracle Java SE are affected. Affected releases include Java SE 8u503, 8u503‑perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, and 27; GraalVM for JDK 17.0.20.1 and 21.0.12.1; GraalVM Enterprise Edition 21.3.19.1.1.

Risk and Exploitability

The vulnerability is easily exploitable through network protocols that expose application programming interfaces. The EPSS score of < 1% (0.00281) indicates a very low but non‑zero probability of exploitation, while the issue is not listed in the CISA KEV catalog, suggesting no confirmed widespread exploitation yet. Nevertheless, the weakness permits unauthorized data operations without authentication, and attackers can leverage this in sandboxed Java Web Start applications or applets that run untrusted code. Given the documented vector and moderate severity, systems should treat this as a high‑priority patching issue.

Generated by OpenCVE AI on November 6, 2026 at 21:29 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install the latest Oracle patches for Java SE, GraalVM for JDK, and GraalVM Enterprise Edition that contain the fix for this vulnerability.
  • Restrict network exposure of the APIs used by the affected libraries and enforce role‑based access controls to eliminate the authorization bypass.
  • Disable or limit the use of Java Web Start and applets that run untrusted code in environments where sandbox enforcement is required.

Generated by OpenCVE AI on November 6, 2026 at 21:29 UTC.

Tracking

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Advisories

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History

Sat, 07 Nov 2026 07:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Fri, 06 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Thu, 22 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-639

Thu, 22 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Title Unauthorized Data Access and Modification via Unauthenticated API Exploitation in Oracle Java and GraalVM openjdk: Enhance Certificate Constraint Checking (Oracle CPU 2026-10)
Weaknesses CWE-295
References
Metrics threat_severity

None

 threat_severity

Moderate

Wed, 21 Oct 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Oracle graalvm Enterprise Edition
Oracle oracle Java Se
Vendors & Products Oracle graalvm Enterprise Edition
Oracle oracle Java Se

Wed, 21 Oct 2026 06:30:00 +0000

Type Values Removed Values Added
Title Unauthorized Data Access and Modification via Unauthenticated API Exploitation in Oracle Java and GraalVM
Weaknesses CWE-284
CWE-639

Tue, 20 Oct 2026 21:30:00 +0000

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: Libraries). 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. 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 update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data as well as unauthorized read access to a subset of 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 6.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).
First Time appeared Oracle
Oracle graalvm
Oracle graalvm For Jdk
Oracle java Se
CPEs cpe:2.3:a:oracle:graalvm:21.3.19.1.1:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:graalvm_for_jdk:17.0.20.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:graalvm_for_jdk:21.0.12.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:11.0.32.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:17.0.20.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:21.0.12.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:25.0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:27:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:8u503:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:8u503:*:*:*:enterprise_performance:*:*:*
Vendors & Products Oracle
Oracle graalvm
Oracle graalvm For Jdk
Oracle java Se
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}

Subscriptions

Oracle Graalvm Graalvm Enterprise Edition Graalvm For Jdk Java Se Oracle Java Se
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-11-06T19:31:05.460Z

Reserved: 2026-09-28T15:40:09.489Z

Link: CVE-2026-101516

cve-icon Vulnrichment

Updated: 2026-11-06T19:30:29.931Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:18:00.867

Modified: 2026-11-06T20:17:05.440

Link: CVE-2026-101516

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-20T21:21:18Z

Links: CVE-2026-101516 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T21:45:10Z

Weaknesses
  • CWE-284

    Improper Access Control

  • CWE-295

    Improper Certificate Validation