CVE-2026-47058: High severity Oracle Java SE (Scripting) vulnerability

Published Jul 20, 2026
·
Updated

1) DataView getter/setter methods use absolute ByteBuffer indexing and ignore the offset, allowing read and write to memory outside its intended window. 2) Missing bounds check in the DataView constructor fails to validate the capacity.

Other sources

Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java SE accessible data as well as unauthorized access to critical data or complete access to all Java SE accessible data.

IBM

Vulnerability in Oracle Java SE (component: Scripting). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf and 11.0.31. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Java SE accessible data as well as unauthorized access to critical data or complete access to all Oracle Java SE 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 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).

NVD

Affected Software

10 affected components
Oracle Java SE (Scripting)>=8u491<=8u491, >=8u491-perf<=8u491-perf, >=11.0.31<=11.0.31
Oracle JRE=1.8.0-update491
Oracle JRE=1.8.0-update491
Oracle JRE=11.0.31
Oracle JDK=1.8.0-update491
Oracle JDK=1.8.0-update491
Oracle JDK=11.0.31
IBM WebSphere Application Server<=8.5
IBM WebSphere Application Server<=9.0
IBM WebSphere Application Server - Liberty<=Continuous delivery

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Oracle Java SE to a version that resolves this vulnerability.

    Fixed in 8u491
  2. Upgrade

    Upgrade Oracle Java SE to a version that resolves this vulnerability.

    Fixed in 8u491-perf
  3. Upgrade

    Upgrade Oracle Java SE to a version that resolves this vulnerability.

    Fixed in 11.0.31
  4. Compensating control

    Because this vulnerability is reachable over the network (unauthenticated attacker with network access via multiple protocols) and may be exploitable through APIs (e.g., a web service supplying data to the APIs in the affected Component: Scripting), restrict network access to the exposed Java services/APIs to only trusted clients (e.g., via firewall/ACL allowlists).

Event History

Jul 20, 2026
Data Sourced
via Red Hat·01:20 PM
DescriptionSeverityAffected Software
Jul 21, 2026
CVE Published
via MITRE·09:33 PM
Data Sourced
via MITRE·09:33 PM
DescriptionSeverity
Data Sourced
via NVD·10:17 PM
DescriptionSeverityWeaknessAffected Software
Aug 4, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-47058?

The severity of CVE-2026-47058 is rated as high with a score of 7.4.

2

How do I fix CVE-2026-47058?

To fix CVE-2026-47058, ensure you update to the latest versions of Oracle JRE, Oracle JDK, and IBM WebSphere Application Server.

3

What impact does CVE-2026-47058 have on my system?

CVE-2026-47058 can potentially allow unauthorized memory access, leading to data corruption or leakage.

4

Which software is affected by CVE-2026-47058?

CVE-2026-47058 affects Oracle JRE, Oracle JDK, IBM WebSphere Application Server, and Oracle Java SE.

5

Is CVE-2026-47058 easy to exploit?

CVE-2026-47058 is considered difficult to exploit but poses serious risks if successfully targeted.

Contact

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