CVE-2024-20945 Information disclosure in Java SE JDK and JRE
A local attacker with low privileges can exploit a vulnerability in Oracle Java SE to gain unauthorized access to critical data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-20945?
CVE-2024-20945 is a medium-severity vulnerability in Oracle Graalvm, published on 17 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u391, 8u391-perf, 11.0.21, 17.0.9, 21.0.1; Oracle GraalVM for JDK: 17.0.9, 21.0.1; Oracle GraalVM Enterprise Edition: 20.3.12, 21.3.8 and 22.3.4. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition executes 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 4.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).
Which versions are affected by CVE-2024-20945?
3 open source packages ship an affected version, including java, java-min and jre. It affects 4 products.
| Package | Affected | Fixed in |
|---|---|---|
java Bitnami | All versions | 1.8.0, 8.0.401, 11.0.22, 17.0.10, 21.0.2 |
java-min Bitnami | All versions | 1.8.0, 8.0.401, 11.0.22, 17.0.10, 21.0.2 |
jre Bitnami | All versions | 1.8.0, 8.0.401, 11.0.22, 17.0.10, 21.0.2 |
Products include Oracle Graalvm, Oracle Graalvm for Jdk, Oracle Jdk, Oracle Jre.
How do I fix CVE-2024-20945?
Upgrade java to a fixed version for your release line: 1.8.0, 8.0.401, 11.0.22 or 17.0.10.
Is CVE-2024-20945 being exploited?
There is no known exploitation of CVE-2024-20945 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 BELL-CVE-2024-20945, BIT-java-2024-20945, BIT-java-min-2024-20945, BIT-jre-2024-20945, CLEANSTART-2026-ND32244, CLEANSTART-2026-XS18614 and 13 more.