CVE-2026-34315
Received Received - Intake
Unauthorized Data Modification via Web Services in Oracle WebLogic

Publication date: 2026-04-21

Last updated on: 2026-04-24

Assigner: Oracle

Description
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Services). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 6.5 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N).
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Meta Information
Published
2026-04-21
Last Modified
2026-04-24
Generated
2026-06-16
AI Q&A
2026-04-22
EPSS Evaluated
2026-06-14
NVD
CVE-2026-34315
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
oracle weblogic_server 12.2.1.4.0
oracle weblogic_server 14.1.1.0.0
oracle weblogic_server 14.1.2.0.0
oracle weblogic_server 15.1.1.0.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-285 The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CWE-601 The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
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Executive Summary

This vulnerability exists in the Oracle WebLogic Server product, specifically in the Web Services component. It affects several supported versions including 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0.

The vulnerability is easily exploitable by an unauthenticated attacker who has network access via HTTP. However, successful exploitation requires human interaction from someone other than the attacker.

If exploited successfully, the attacker can gain unauthorized ability to create, delete, or modify critical data or any data accessible through Oracle WebLogic Server.

Impact Analysis

This vulnerability can lead to unauthorized modification of critical data or any data accessible via Oracle WebLogic Server. This means an attacker could create, delete, or alter important information without permission.

Such unauthorized changes can compromise the integrity of your data, potentially disrupting business operations or leading to data corruption.

Compliance Impact

This vulnerability allows an unauthenticated attacker with network access to compromise Oracle WebLogic Server, potentially leading to unauthorized creation, deletion, or modification of critical data or all accessible data on the server.

Such unauthorized modification of critical data could impact compliance with standards and regulations like GDPR and HIPAA, which require protection of data integrity and prevention of unauthorized access or alteration of sensitive information.

However, the provided information does not explicitly state the direct effects on compliance with these regulations.

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