CVE-2026-91376 vulnerability in Oracle Products
Published on October 20, 2026
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. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Primavera P6 Enterprise Project Portfolio Management. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Primavera P6 Enterprise Project Portfolio Management, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Primavera P6 Enterprise Project Portfolio Management accessible data as well as unauthorized update, insert or delete access to some of Primavera P6 Enterprise Project Portfolio Management accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N).
Vulnerability Analysis
CVE-2026-91376 is exploitable with network access, requires user interaction and a small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2026-91376 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2026-91376
stack.watch emails you whenever new vulnerabilities are published in Oracle or Oracle Primavera P6 Enterprise Project Portfolio Management. Just hit a watch button to start following.
Affected Versions
Oracle Corporation Primavera P6 Enterprise Project Portfolio Management:- Version 21.12.0.0, <= 21.12.21.9 is affected.
- Version 22.12.0.0, <= 22.12.21.4 is affected.
- Version 23.12.0, <= 23.12.20 is affected.
- Version 24.12.0, <= 24.12.16 is affected.
- Version 25.12.0, <= 25.12.8 is affected.