CVE-2026-47057

Analyzed Analyzed - Analysis Complete

Denial of Service in Oracle Java SE

Publication date: 2026-07-21

Last updated on: 2026-08-03

Assigner: Oracle

Description

Vulnerability in Oracle Java SE (component: Scripting). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf and 11.0.31. Easily exploitable 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 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 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS Scores

EPSS Scores

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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-2026-47057

EUVD

EUVD-2026-46543

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	jre	1.8.0
oracle	jre	11.0.31
oracle	jre	1.8.0
oracle	jdk	1.8.0
oracle	jdk	11.0.31
oracle	jdk	1.8.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Java SE's Scripting component affecting versions 8u491, 8u491-perf, and 11.0.31. It allows unauthenticated attackers to cause a denial of service (DOS) by exploiting flaws in the scripting APIs, potentially crashing Java applications or services.

Detection Guidance

Detection requires checking installed Java versions. For systems with Java 8u491, 8u491-perf, or 11.0.31, the vulnerability is present. Use commands like 'java -version' or check package managers (e.g., 'rpm -qa | grep jre' on Linux). Network detection involves monitoring for unusual traffic patterns targeting Java services.

Impact Analysis

If you use affected Java SE versions, an attacker could exploit this to crash your Java applications or services, leading to downtime and service disruption. This is especially risky for web services or client applications loading untrusted code.

Compliance Impact

This vulnerability causes denial-of-service conditions in Oracle Java SE, which could disrupt critical systems handling sensitive data. For GDPR, such disruptions may impact availability of personal data processing systems, potentially violating Article 32 (security of processing). For HIPAA, it could affect the availability of electronic protected health information (ePHI) systems, violating the Security Rule's integrity and availability requirements.

Mitigation Strategies

Apply the latest Oracle Java SE patches immediately. If patching is not possible, disable Java in browsers and applications, restrict network access to Java services, and monitor for suspicious activity. Consider disabling Java Web Start and applets if unused.

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