CVE-2026-87340

Modified Modified - Updated After Analysis

PeopleTools Portal Data Integrity Flaw

Publication date: 2026-10-20

Last updated on: 2026-10-28

Assigner: Oracle

Description

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Portal). Supported versions that are affected are 8.61-8.63. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of PeopleSoft Enterprise PeopleTools accessible data. 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).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-10-28

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-87340

EUVD

EUVD-2026-106382

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	peoplesoft_enterprise_peopletools	From 8.61 (inc) to 8.63 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle PeopleSoft Enterprise PeopleTools versions 8.61-8.63. It allows an unauthenticated attacker with network access via HTTP to potentially modify data in the system. The impact is limited to unauthorized updates, inserts, or deletes on accessible data, with no confidentiality or availability impact.

Detection Guidance

Detection of CVE-2026-87340 requires checking for vulnerable versions of Oracle PeopleSoft Enterprise PeopleTools (8.61-8.63). Inspect system logs for unusual HTTP access patterns or unauthorized data modifications. Verify PeopleTools version via administrative interfaces or configuration files. No specific commands are provided in the context.

Impact Analysis

An attacker could alter critical data in PeopleSoft Enterprise PeopleTools, such as employee records or financial information, without authorization. This could lead to data corruption, incorrect reporting, or compliance violations depending on the affected data.

Compliance Impact

This vulnerability allows unauthorized modification of data, which could lead to integrity issues. For GDPR, this may impact data accuracy requirements under Article 5. For HIPAA, it could affect integrity controls under the Security Rule. However, the specific compliance impact depends on the data processed and stored in the affected system.

Mitigation Strategies

Apply the latest Oracle Critical Patch Update for PeopleSoft Enterprise PeopleTools versions 8.61-8.63 to address the vulnerability. Ensure network access controls restrict HTTP traffic to trusted sources only.

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