CVE-2026-91399 Vulnerability in the Primavera P6 Enterprise Project Portfolio Management product of Oracle Construction and Engineering (component: Web Access).
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-91399?
CVE-2026-91399 is a medium-severity vulnerability in Oracle Corporation Primavera P6 Enterprise Project Portfolio Management, published on 20 Oct 2026.
Official 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).
Weakness: CWE-284
Which versions are affected by CVE-2026-91399?
How do I fix CVE-2026-91399?
No fix has been published for CVE-2026-91399 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-91399 being exploited?
There is no known exploitation of CVE-2026-91399 in the wild and no public exploit code.
Sources
Also known as GHSA-x5cm-8376-g3jj.