Oracle Java SE/GraalVM for JDK/GraalVM Enterprise Edition JAXP improper authorization

Summaryinfo

A vulnerability was found in Oracle Java SE, GraalVM for JDK and GraalVM Enterprise Edition. It has been classified as critical. The impacted element is an unknown function of the component JAXP. Performing a manipulation results in improper authorization. This vulnerability is cataloged as CVE-2026-22016. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Oracle Java SE, GraalVM for JDK and GraalVM Enterprise Edition (unknown version). It has been classified as critical. This affects an unknown code block of the component JAXP. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality. The summary by CVE is:

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JAXP). 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. 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 access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. 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 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

The advisory is shared at oracle.com. This vulnerability is uniquely identified as CVE-2026-22016 since 01/05/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/12/2026). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 309659 (RHEL 7 / 8 / 9 : Java 11 OpenJDK ELS Security Update (Important) (RHSA-2026:9254)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (309659) and CERT Bund (WID-SEC-2026-1201). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• Debian Linux
• IBM Tivoli Monitoring
• Amazon Linux 2
• Open Source OpenJDK
• Red Hat Enterprise Linux
• Ubuntu Linux
• IBM WebSphere Application Server
• SUSE Linux
• IBM Tivoli Netcool/OMNIbus
• Oracle Linux
• IBM Rational Software Architect
• IBM TXSeries
• IBM InfoSphere Information Server
• IBM Content Manager
• SUSE openSUSE
• RESF Rocky Linux
• NetApp ActiveIQ Unified Manager
• Azul Zulu
• IBM Semeru Runtime
• Open Source Camunda
• IBM App Connect Enterprise
• Oracle Java SE
• Oracle GraalVM
• IBM Java
• IBM Business Automation Workflow
• RealObjects PDFreactor
• IBM Rational Application Developer for WebSphere Software
• IBM WebSphere Service Registry and Repository
• IBM Tivoli Network Manager

Productinfo

Type

• Programming Language Software

Vendor

• Oracle

Name

• GraalVM Enterprise Edition
• GraalVM for JDK
• Java SE

License

• open-source

Website

• Vendor: https://www.oracle.com

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