---
id: "CVE-2026-91486"
kind: "vulnerability"
aliases: ["CVE-2026-91486"]
title: "Oracle PeopleSoft FIN General Ledger Brazil: low-privilege user can alter data"
severity: "medium"
cvss: 4.4
epss: 0.00095
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["erp", "finance-systems", "oracle", "other", "peoplesoft"]
not_affected_if: ["other-peoplesoft-modules"]
published_at: "2026-10-20T22:20:53+00:00"
first_seen_at: "2026-10-23T21:57:27+00:00"
updated_at: "2026-10-25T12:38:51+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91486", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91486", "first_seen_at": "2026-10-25T12:38:51+00:00"}]
---

# Oracle PeopleSoft FIN General Ledger Brazil: low-privilege user can alter data

A flaw in the General Ledger component of Oracle PeopleSoft Enterprise FIN General Ledger Brazil 9.1 lets a low-privileged user who can log on to the underlying infrastructure modify or delete some accessible data. It can also cause a partial denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91486
- 2026-10-25T12:38:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91486

## From the sources

Vulnerability in the PeopleSoft Enterprise FIN General Ledger Brazil product of Oracle PeopleSoft (component: General Ledger).   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 General Ledger Brazil executes to compromise PeopleSoft Enterprise FIN General Ledger Brazil.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of PeopleSoft Enterprise FIN General Ledger Brazil accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of PeopleSoft Enterprise FIN General Ledger 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).

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_