CVE-2026-22003 Denial of service in Oracle GraalVM Enterprise Edition
A low-privileged attacker with local access can cause data modification and denial of service in Java SE and GraalVM via difficult-to-exploit flaws requiring user interaction.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-22003?
CVE-2026-22003 is a medium-severity denial of service vulnerability in Oracle Graalvm, published on 21 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Hotspot). Supported versions that are affected are Oracle Java SE: 8u481 and 8u481-b50; Oracle GraalVM Enterprise Edition: 21.3.17. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Java SE, Oracle GraalVM Enterprise Edition executes to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition. Note: This vulnerability 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. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 6.0 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H).
Weakness: CWE-400
Which versions are affected by CVE-2026-22003?
3 open source packages ship an affected version, including java, java-min and jre. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
java Bitnami | All versions | 1.8.0, 8.0.491 |
java-min Bitnami | All versions | 1.8.0, 8.0.491 |
jre Bitnami | All versions | 1.8.0, 8.0.491 |
Products include Oracle Graalvm, Oracle Jdk, Oracle Jre.
How do I fix CVE-2026-22003?
Upgrade java to a fixed version for your release line: 1.8.0 or 8.0.491.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-22003 being exploited?
There is no known exploitation of CVE-2026-22003 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Oracle Graalvm
- CVE-2025-50059 Security feature bypass in Oracle GraalVM Enterprise Edition
- CVE-2021-32803 Arbitrary File Creation/Overwrite via insufficient symlink protection due to directory cache poisoning
- CVE-2021-32804 Arbitrary File Creation/Overwrite due to insufficient absolute path sanitization
- CVE-2025-30749 Code injection in Oracle GraalVM Enterprise Edition
- CVE-2025-50106 Code injection in Oracle GraalVM Enterprise Edition
Sources
Also known as BIT-java-2026-22003, BIT-java-min-2026-22003, BIT-jre-2026-22003, GHSA-q4wq-4whj-cxhx, MINI-wg8q-m759-73h8, UBUNTU-CVE-2026-22003.