CVE-2026-22018: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java…

CVE-2026-22018 · Severity: low · CVSS 3.7 · Published 2026-04-21

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). Supported versions that are affected are Oracle Java SE: 8u481, 8u481-b50, 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Difficult to exploit 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 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 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

Technologies: Oracle Graalvm, Oracle Graalvm For Jdk, Oracle Jdk, Oracle JRE. Vendors: Oracle.

Quick answers

Is CVE-2026-22018 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-22018 being exploited in the wild.
How severe is CVE-2026-22018?
Low severity, with a CVSS score of 3.7, published 21 April 2026.
Which products and versions are affected?
Oracle Graalvm, Oracle Graalvm For Jdk, Oracle Jdk, Oracle JRE. The advisory does not name versions.
Is there a fix for CVE-2026-22018?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-22018?
Check whether you run Oracle Graalvm, Oracle Graalvm For Jdk, Oracle Jdk or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Oracle Graalvm
  • Oracle Graalvm For Jdk
  • Oracle Jdk
  • Oracle JRE

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