CVE-2026-91399 — MEDIUM (4.3)

Vulnerability 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).

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-284

References

https://www.oracle.com/security-alerts/cpuoct2026.html

FAQ

What is CVE-2026-91399?

CVE-2026-91399 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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...

How severe is CVE-2026-91399?

CVE-2026-91399 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-91399?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.