CVE-2026-101516: Oracle Java SE Libraries vulnerability (CVE-2026-101516)

Vulnerability in Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition (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, 27; Oracle GraalVM for JDK: 17.0.20.1, 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Exploitable remotely without authentication via multiple protocols. CVSS 3.1 base score 6.5 (confidentiality, integrity impact). 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. Fixed in the Oracle Critical Patch Update of October 20, 2026 and the matching OpenJDK update releases; OpenJDK lists 26.0.2.1, 25.0.4.1, 21.0.12.1, 17.0.20.1, 11.0.32.1, 8u504 and earlier as affected.