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-2026-83376
JSSE integrity flaw in Oracle Java SE and GraalVM via TLS
- CVSS 3.1
- 3.7 low
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A flaw in the JSSE component of Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition lets an unauthenticated attacker with network access over TLS insert, update, or delete some data those products can access. It also applies to sandboxed Java Web Start applications and applets that load untrusted code and rely on the Java sandbox. Oracle lists specific builds and has not listed fixed versions.
What to do: Apply Oracle's update for CVE-2026-83376. Oracle has not listed fixed versions.
| 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, 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: JSSE). 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 TLS to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of 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 3.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).
- Weakness
- CWE-200
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/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.
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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.
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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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