OpenJDK 8 flaws may let remote attackers read or change data
Ubuntu cites four CVEs in Security, JSSE, and JAAS; the notice cuts off before fixes.
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CVE-2026-83374
Unauthenticated integrity flaw in Oracle Java SE Security
- CVSS 3.1
- 5.9 medium
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
An integrity flaw in the Security component of Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition lets an unauthenticated attacker with network access create, delete, or modify critical accessible data. It also applies to sandboxed Java Web Start applications and applets that load untrusted code. Oracle lists specific builds and has not stated fixed versions.
What to do: Apply Oracle's update for CVE-2026-83374. No fixed version or workaround is stated.
| Product | Affected |
|---|---|
| Oracle Java SE | 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27 |
| Oracle GraalVM for JDK | 17.0.20.1 and 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: Security). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; 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. 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 5.9 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).
- Weakness
- CWE-200
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
In the news
4 storiesUbuntu fixes OpenJDK 21 flaws that can expose or alter data
Remote attackers could modify data via Security and JSSE issues; one Compiler flaw needs no authentication.
48
Ubuntu fixes OpenJDK 17 flaws that can expose or alter data
Named issues include authentication and JSSE flaws plus a JAAS bug that could expose sensitive data.
48
OpenJDK 11 auth flaws may expose or alter data (USN-9010-1)
Ubuntu's notice says remote attackers could modify or read sensitive data via Security, JSSE, and JAAS issues.
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