Ubuntu fixes OpenJDK 25 flaws that can expose data
USN-9004-1 lists remote flaws in 2D, Networking and JGSS, including CVE-2026-91382.
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CVE-2026-91382
Improper access control in Oracle Java SE 2D
- CVSS 3.1
- 6.5 medium
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
An improper access control flaw in the 2D component of Oracle Java SE, GraalVM for JDK, and GraalVM Enterprise Edition lets an unauthenticated attacker with network access, via multiple protocols, modify or delete critical data and cause a partial denial of service. It is difficult to exploit, including through a web service that feeds data to the 2D APIs, and also applies to sandboxed Java Web Start apps and applets that run untrusted code. Oracle lists specific supported builds as affected and has not named fixed versions.
What to do: Apply Oracle's update for CVE-2026-91382. Oracle has not listed fixed versions.
| Product | Affected |
|---|---|
| Oracle Java SE | 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1 |
| Oracle GraalVM for JDK | 17.0.20.1, 21.0.12.1 |
| Oracle GraalVM Enterprise Edition | 21.3.19.1.1 |
Estimated exposure
No basis for an estimate.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: 2D). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. 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 creation, deletion or modification access to critical data or all 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:H/PR:N/UI:N/S:U/C:N/I:H/A:L).
- Weakness
- CWE-284
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L