CVE-2026-91559 Vulnerability in the PeopleSoft Enterprise FIN Manufacturing Brazil product of Oracle PeopleSoft (component: Integration).

Medium 4.4 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-91559?

CVE-2026-91559 is a medium-severity vulnerability in Oracle Corporation PeopleSoft Enterprise FIN Manufacturing Brazil, published on 20 Oct 2026.

Official description

Vulnerability in the PeopleSoft Enterprise FIN Manufacturing Brazil product of Oracle PeopleSoft (component: Integration). The supported version that is affected is 9.1. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where PeopleSoft Enterprise FIN Manufacturing Brazil executes to compromise PeopleSoft Enterprise FIN Manufacturing Brazil. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of PeopleSoft Enterprise FIN Manufacturing Brazil accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of PeopleSoft Enterprise FIN Manufacturing Brazil. CVSS 3.1 Base Score 4.4 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L).

Weakness: CWE-284

Which versions are affected by CVE-2026-91559?

How do I fix CVE-2026-91559?

No fix has been published for CVE-2026-91559 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-91559 being exploited?

There is no known exploitation of CVE-2026-91559 in the wild and no public exploit code.

Sources

Also known as GHSA-q598-9qpq-mh2p.

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