CVE-2026-114820
Received Received - Intake

Denial of Service in Oracle Java SE

Publication date: 2026-10-24

Last updated on: 2026-10-24

Assigner: Oracle

Description
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 8u511-b32, 8u511-perf-b32, 11.0.33.0.2, 17.0.21.0.2, 21.0.13.0.2, 25.0.5.0.2, 27.0.1.0.2; Oracle GraalVM for JDK: 17.0.21.0.2 and 21.0.13.0.2; Oracle GraalVM Enterprise Edition: 21.3.20.0.2. 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 as well as 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 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

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Meta Information

Published
2026-10-24
Last Modified
2026-10-24
Generated
2026-10-24
AI Q&A
2026-10-24
EPSS Evaluated
N/A
NVD
CVE-2026-114820
EUVD
EUVD-2026-109314

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a vulnerability in Oracle Java SE, GraalVM for JDK, and GraalVM Enterprise Edition affecting multiple versions. It involves the JSSE component and allows unauthenticated attackers to remotely access and compromise data integrity and confidentiality via network protocols. Exploitation can lead to unauthorized creation, deletion, or modification of critical data.

Detection Guidance

Detecting this vulnerability requires checking the installed Java versions and verifying if they are affected. Use commands like 'java -version' to check the version. Compare the output against the affected versions listed in the CVE. Additionally, inspect the JSSE component for any misconfigurations or unauthorized modifications.

Impact Analysis

If you use affected Oracle Java or GraalVM versions, an attacker could access sensitive data, modify or delete critical files, or gain full access to system data without authentication. This is especially risky for systems running untrusted Java code like web apps or applets.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Non-compliance risks include legal penalties, fines, and reputational damage.

Mitigation Strategies

Immediately update to the latest Java version or apply Oracle's recommended mitigations. Remove or disable impacted root CA certificates related to eMudhra as advised by Oracle. Ensure all Java deployments, especially those running untrusted code, are updated and properly sandboxed.

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