Bug 2557344 (CVE-2026-91477)

Summary: CVE-2026-91477 openjfx: openjfx: unauthorized read access via untrusted sandboxed code
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in OpenJFX. An unauthenticated remote attacker could exploit this vulnerability by convincing a user to load and run untrusted code within a sandboxed client application. A successful attack allows unauthorized read access to a subset of accessible data, resulting in information disclosure.
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Bug Depends On: 2558769    
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Description OSIDB Bzimport 2026-10-21 00:01:26 UTC 
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).