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).
Published: 2026-10-20
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Data Integrity Compromise
Action: Apply Patch
AI Analysis

Impact

The vulnerability resides in the Web Access component of Oracle Primavera P6 Enterprise Project Portfolio Management. A low‑privileged user who can reach the application over HTTP can exploit the flaw to perform unauthorized insert, update, or delete operations on data managed by the platform. The consequence is a compromise of data integrity, allowing an attacker to alter project information without proper authorization. The weakness aligns with improper access control.

Affected Systems

Affected systems are Oracle Primavera P6 Enterprise Project Portfolio Management, versions 21.12.0.0 through 21.12.21.9, 22.12.0.0 through 22.12.21.4, 23.12.0 through 23.12.20, 24.12.0 through 24.12.16, and 25.12.0 through 25.12.8. These releases span multiple product years and contain the vulnerable Web Access component.

Risk and Exploitability

The CVSS v3.1 base score of 4.3 indicates moderate risk focused on integrity impact. The exploit requires network connectivity to the web service and only low privileges, meaning any user who can access the public interface may potentially leverage the flaw if privileges are not correctly constrained. EPSS is not available, and the vulnerability is not listed in CISA’s KEV catalog, suggesting no known widespread exploitation yet, but the attack vector remains realistic given exposure over HTTP.

Generated by OpenCVE AI on October 21, 2026 at 13:17 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Oracle patch for Primavera P6 that addresses the web access flaw.
  • Enforce strict role‑based access controls and limit user permissions to only those required for their tasks.
  • Monitor database and application logs for abnormal insert, update, or delete activity and investigate any anomalies promptly.

Generated by OpenCVE AI on October 21, 2026 at 13:17 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 23 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 21 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
Title Low‑Privilege Web Access Modification in Primavera P6
Weaknesses CWE-284

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
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).
First Time appeared Oracle
Oracle primavera P6 Enterprise Project Portfolio Management
CPEs cpe:2.3:a:oracle:primavera_p6_enterprise_project_portfolio_management:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle primavera P6 Enterprise Project Portfolio Management
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

Subscriptions

Oracle Primavera P6 Enterprise Project Portfolio Management
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-23T19:47:07.636Z

Reserved: 2026-09-14T22:10:16.632Z

Link: CVE-2026-91399

cve-icon Vulnrichment

Updated: 2026-10-23T19:46:53.588Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:20:43.327

Modified: 2026-10-23T20:17:28.460

Link: CVE-2026-91399

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T18:30:09Z

Weaknesses