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[ CVE-2026-91396 · Published 20 Oct 2026 ]

Vulnerability in Oracle Corporation Oracle Java SE

CVSS 6.5 EPSS <1%3 agency advisoriesNo fix listed yet

[ Description ]Official description

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Utility). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. 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 6.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L).

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

  • NCSC-NLNCSC-2026-0449

    Multiple vulnerabilities fixed in Oracle Java Translated from Dutch

    Probability/damage M/HCVE-2026-6732CVE-2026-43660CVE-2026-46470+52 more CVEs
  • CERT-FRCERTFR-2026-AVI-1350

    Multiple vulnerabilities in Oracle Java SE Translated from French

    Multiple vulnerabilities have been discovered in Oracle Java SE. Some of them allow an attacker to cause remote arbitrary code execution, remote denial of service and a breach of data confidentiality.

    CVE-2026-91333CVE-2026-91335CVE-2026-28901+112 more CVEs
  • BSI CERT-BundWID-SEC-2026-4079

    Oracle Java SE: Multiple vulnerabilities Translated from German

    Risk mediumCVE-2026-91410CVE-2026-91333CVE-2026-91417+52 more CVEs

[ References ]References