CVE-2026-91385
MediumCVSS 5.4Summary
Vulnerability in the JavaFX component of Oracle Java SE, Oracle JavaFX, and Oracle GraalVM Enterprise Edition. An unauthenticated attacker with network access can, with user interaction, perform unauthorized modification and read access to some data. The flaw affects clients running untrusted code in a sandbox.
Risk Assessment
Users running untrusted Java applications may expose the organization to unauthorized changes and data leakage.
Recommendation
Update Oracle Java SE, Oracle JavaFX, and Oracle GraalVM Enterprise Edition to versions containing the security fix.
Other vulnerabilities in Oracle JavaFX
See all- CVE-2026-91477Low
Vulnerability in Oracle JavaFX (component: JavaFX) affecting versions 25.0.4 and 27. A difficult to exploit flaw allows an unauthenticated network attacker to read a subset of data, requiring user interaction; applies to clients running sandboxed Java Web Start/applets.
- CVE-2026-91402Low
Vulnerability in Oracle Java SE, Oracle JavaFX and Oracle GraalVM Enterprise Edition (component: JavaFX). A difficult to exploit flaw allows an unauthenticated network attacker to read a subset of data, requiring user interaction; applies to sandboxed Java clients.
Original NVD description (English source)
Vulnerability in the Oracle Java SE, Oracle JavaFX, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JavaFX). Supported versions that are affected are Oracle Java SE: 8u503; Oracle JavaFX: 21.0.12, 25.0.4 and 27; 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, Oracle JavaFX, Oracle GraalVM Enterprise Edition. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle JavaFX, Oracle GraalVM Enterprise Edition accessible data as well as unauthorized read access to a subset of Oracle Java SE, Oracle JavaFX, Oracle GraalVM Enterprise Edition 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 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

