CVE-2024-20923 Security feature bypass in Java SE JDK and JRE
An unauthenticated attacker can bypass Java sandbox restrictions to read accessible data via JavaFX, requiring user interaction.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-20923?
CVE-2024-20923 is a low-severity vulnerability in Oracle Graalvm, published on 17 Feb 2024. An attacker can exploit it over the internet without logging in, 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: JavaFX). Supported versions that are affected are Oracle Java SE: 8u391; Oracle GraalVM Enterprise Edition: 20.3.12 and 21.3.8. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols 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 read access to a subset of Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data. 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 3.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N).
Weakness: CWE-693
Which versions are affected by CVE-2024-20923?
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, 8.0.401 |
java-min Bitnami | All versions | 1.8.0, 8.0.401 |
jre Bitnami | All versions | 1.8.0, 8.0.401 |
Products include Oracle Graalvm, Oracle Jdk, Oracle Jre.
How do I fix CVE-2024-20923?
Upgrade java to a fixed version for your release line: 1.8.0 or 8.0.401.
Is CVE-2024-20923 being exploited?
There is no known exploitation of CVE-2024-20923 in the wild and no public exploit code.
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-2024-20923, BIT-java-min-2024-20923, BIT-jre-2024-20923, GHSA-8p58-rq38-6972, MINI-rgj9-xvqx-3983, UBUNTU-CVE-2024-20923.