CVE-2026-47027

Name of the Vulnerable Software and Affected Versions Oracle Java SE versions 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1 Oracle GraalVM for JDK versions 17.0.19, 21.0.11 Oracle GraalVM Enterprise Edition version 21.3.18

Description An unauthenticated attacker with network access via multiple protocols can compromise the Libraries component. This issue can be exploited through APIs, such as via a web service that provides data to these APIs. It 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. Successful exploitation can result in a partial denial of service (partial DOS), which is a condition where the system remains operational but some of its functions are unavailable.

Recommendations Update Oracle Java SE version 8u491 to a newer version. Update Oracle Java SE version 8u491-perf to a newer version. Update Oracle Java SE version 11.0.31 to version 11.0.32 or newer. Update Oracle Java SE version 17.0.19 to version 17.0.20 or newer. Update Oracle Java SE version 21.0.11 to a newer version. Update Oracle Java SE version 25.0.3 to a newer version. Update Oracle Java SE version 26.0.1 to version 26.0.2 or newer. Update Oracle GraalVM for JDK version 17.0.19 to a newer version. Update Oracle GraalVM for JDK version 21.0.11 to a newer version. Update Oracle GraalVM Enterprise Edition version 21.3.18 to a newer version.