Oracle GraalVM for JDK/GraalVM Enterprise Edition/GraalVM Compiler improper authorization

Summaryinfo

A vulnerability was found in Oracle GraalVM for JDK, GraalVM Enterprise Edition and GraalVM and classified as critical. The affected element is an unknown function of the component Compiler. The manipulation results in improper authorization. This vulnerability is reported as CVE-2026-83368. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Oracle GraalVM for JDK, GraalVM Enterprise Edition and GraalVM (the affected version is unknown). Affected is an unknown code of the component Compiler. 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, integrity, and availability. CVE summarizes:

Vulnerability in the Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition, Oracle GraalVM product of Oracle Java SE (component: Compiler). The supported version that is affected is Oracle GraalVM for JDK 17: 23.0.13.1; Oracle GraalVM for JDK 21: 23.1.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1; Oracle GraalVM: 25.0.4.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition, Oracle GraalVM. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition, Oracle GraalVM accessible data as well as unauthorized update, insert or delete access to some of Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition, Oracle GraalVM accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition, Oracle GraalVM. CVSS 3.1 Base Score 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L).

The advisory is available at oracle.com. This vulnerability is traded as CVE-2026-83368 since 08/31/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/16/2026). This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Programming Tool Software

Vendor

• Oracle

Name

• GraalVM
• GraalVM Enterprise Edition
• GraalVM for JDK

License

• commercial

Website

• Vendor: https://www.oracle.com

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