CVE-2026-91399
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Path Traversal in Oracle Primavera P6 EPPM

Publication date: 2026-10-20

Last updated on: 2026-10-23

Assigner: Oracle

Description
Vulnerability in the Primavera P6 Enterprise Project Portfolio Management product of Oracle Construction and Engineering (component: Web Access). Supported versions that are affected are 21.12.0.0-21.12.21.9, 22.12.0.0-22.12.21.4, 23.12.0-23.12.20, 24.12.0-24.12.16 and 25.12.0-25.12.8. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Primavera P6 Enterprise Project Portfolio Management. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Primavera P6 Enterprise Project Portfolio Management accessible data. CVSS 3.1 Base Score 4.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N).

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Meta Information

Published
2026-10-20
Last Modified
2026-10-23
Generated
2026-11-10
AI Q&A
2026-10-21
EPSS Evaluated
2026-11-09
NVD
CVE-2026-91399
EUVD
EUVD-2026-106653

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

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Executive Summary

This is a vulnerability in Oracle Primavera P6 Enterprise Project Portfolio Management affecting versions 21.12.0.0 through 25.12.8. It allows low-privileged attackers with network access to modify data in the application without authorization.

Detection Guidance

This vulnerability affects Oracle Primavera P6 Enterprise Project Portfolio Management versions 21.12.0.0-21.12.21.9, 22.12.0.0-22.12.21.4, 23.12.0-23.12.20, 24.12.0-24.12.16 and 25.12.0-25.12.8. Check installed versions against these ranges to identify affected systems.

Impact Analysis

An attacker could alter project data, schedules, or resources in Primavera P6, leading to incorrect project management decisions, financial losses, or operational disruptions.

Compliance Impact

This vulnerability allows unauthorized modification of data in Primavera P6, which could impact data integrity. For GDPR, this may affect compliance with principles requiring accuracy and integrity of personal data. For HIPAA, unauthorized data alteration could compromise protected health information integrity.

Mitigation Strategies

Apply the latest security patches from Oracle for affected Primavera P6 versions. Check Oracle's advisory for updates and install them immediately. Ensure network access controls restrict unauthorized HTTP access to the component.

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