CVE-2026-34268

Name of the Vulnerable Software and Affected Versions Oracle Java SE versions 8u481, 8u481-b50, 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26 Oracle GraalVM for JDK versions 17.0.18, 21.0.10 Oracle GraalVM Enterprise Edition version 21.3.17

Description An issue in the Security component allows an unauthenticated attacker with logon access to the infrastructure where the software executes to compromise the system. Successful exploitation can result in unauthorized read access to a subset of accessible data. This can be achieved by using APIs in the Security component, such as through a web service that supplies data to these APIs. The issue also affects Java deployments that load and run untrusted code and rely on the Java sandbox for security, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.