Oracle JavaFX 25.0.4/27 Unauth Data Read via Network
CVE-2026-91477 Published on October 20, 2026
Vulnerability in the Oracle JavaFX product of Oracle Java SE (component: JavaFX). Supported versions that are affected are Oracle JavaFX: 25.0.4 and 27. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle JavaFX. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle JavaFX accessible data. Note: This vulnerability 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. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 3.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N).
Vulnerability Analysis
CVE-2026-91477 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Insecure Storage of Sensitive Information
The software stores sensitive information without properly limiting read or write access by unauthorized actors. If read access is not properly restricted, then attackers can steal the sensitive information. If write access is not properly restricted, then attackers can modify and possibly delete the data, causing incorrect results and possibly a denial of service.
Products Associated with CVE-2026-91477
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Affected Versions
Oracle Corporation Oracle JavaFX:- Version 25.0.4 is affected.
- Version 27 is affected.