CVE-2026-91410
Awaiting Analysis Awaiting Analysis - Queue

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: 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; 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. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-91410
EUVD
EUVD-2026-106662

Helpful Resources

Exploitability

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

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a vulnerability in Oracle Java SE and related products where an unauthenticated attacker can cause a partial denial of service (DOS) by exploiting weaknesses in the Libraries component. It affects multiple versions of Java SE, GraalVM, and GraalVM Enterprise Edition.

Detection Guidance

Detection involves checking installed Java versions against affected releases. Use commands like 'java -version' to verify versions. Compare against Oracle Java SE 8u503, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1 or GraalVM versions 17.0.20.1 and 21.0.12.1. Monitor for partial denial of service symptoms in Java applications.

Impact Analysis

The vulnerability allows attackers to disrupt the availability of Java applications, potentially causing partial service outages. Systems running affected Java versions or using Java Web Start applications may be impacted if they process untrusted code.

Compliance Impact

This vulnerability causes partial denial of service in Oracle Java SE, which may impact system availability. While it does not directly affect data confidentiality or integrity, prolonged downtime could interfere with compliance requirements for availability in standards like GDPR or HIPAA.

Mitigation Strategies

Apply the latest Oracle Java SE security patches immediately to affected versions (8u503, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, GraalVM versions). Disable Java Web Start and Java applets if used in sandboxed environments. Restrict network access to Java services where possible.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-91410. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart

Security Radar

News mentioning this vulnerability
Loading related security news...