CVE-2026-101737

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Denial of Service in Oracle Java SE

Publication date: 2026-10-20

Last updated on: 2026-10-22

Assigner: Oracle

Description

Vulnerability in Oracle Java SE (component: Compiler). The supported version that is affected is Oracle Java SE: 26.0.2. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

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Meta Information

Published

2026-10-20

Last Modified

2026-10-22

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-101737

EUVD

EUVD-2026-106138

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle Corporation	Oracle Java SE	26.0.2

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 version 26.0.2 within the Compiler component. It allows an unauthenticated attacker to cause a denial of service (DOS) by sending specially crafted data to APIs in the affected component. The attack does not require user interaction or authentication and can be executed remotely over multiple protocols.

Detection Guidance

This vulnerability affects Oracle Java SE 26.0.2 and can cause denial of service via network protocols. Detection involves checking the Java version and monitoring for crashes or hangs. Use commands like 'java -version' to verify the installed version and 'jcmd <pid> VM.version' to confirm. Monitor system logs for repeated crashes or hangs in Java processes.

Impact Analysis

If exploited, this vulnerability can cause Oracle Java SE to hang or crash repeatedly, leading to a complete denial of service. This disrupts applications relying on Java SE, potentially causing downtime and loss of service for users and systems using the affected version.

Compliance Impact

This vulnerability causes denial-of-service (DOS) conditions in Oracle Java SE, leading to system unavailability. For GDPR, this could impact data processing operations requiring availability. For HIPAA, it may disrupt systems handling protected health information, potentially violating access requirements.

Mitigation Strategies

Apply the latest Oracle Java SE security patches immediately. Disable unnecessary Java services and restrict network access to Java applications. Monitor for unusual crashes or hangs in Java processes.

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