Oracle Java SE JSSE Vulnerability - Pre-8u503 / 11.0.32 | CVE-2026-83376
CVE-2026-83376 Published on October 20, 2026
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). 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, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. 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 3.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).
Vulnerability Analysis
CVE-2026-83376 is exploitable with network access, and does not require authorization privileges or 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 no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2026-83376 has been classified to as an Information Disclosure vulnerability or weakness.
Products Associated with CVE-2026-83376
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Affected Versions
Oracle Corporation Oracle Java SE:- Version 8u503 is affected.
- Version 8u503-perf is affected.
- Version 11.0.32.1 is affected.
- Version 17.0.20.1 is affected.
- Version 21.0.12.1 is affected.
- Version 25.0.4.1 is affected.
- Version 27 is affected.
- Version 17.0.20.1 is affected.
- Version 21.0.12.1 is affected.
- Version 21.3.19.1.1 is affected.