---
id: "CVE-2026-91541"
kind: "vulnerability"
aliases: ["CVE-2026-91541"]
title: "Oracle PeopleSoft FIN Common Objects Brazil: unauthenticated HTTP flaw allows data changes"
severity: "medium"
cvss: 6.5
epss: 0.00318
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["finance", "oracle", "peoplesoft", "self-hosted", "vendor"]
not_affected_if: ["no-http-exposure", "other-peoplesoft-version"]
published_at: "2026-10-20T22:20:57+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-2026-91541", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91541", "first_seen_at": "2026-10-25T12:38:51+00:00"}]
---

# Oracle PeopleSoft FIN Common Objects Brazil: unauthenticated HTTP flaw allows data changes

Oracle PeopleSoft Enterprise FIN Common Objects Brazil 9.1 has a flaw in its Common Objects component that a remote, unauthenticated attacker can reach over HTTP. Successful exploitation can let an attacker modify or delete some accessible data and partly disrupt the application.

_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-2026-91541
- 2026-10-25T12:38:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91541

## From the sources

Vulnerability in the PeopleSoft Enterprise FIN Common Objects Brazil product of Oracle PeopleSoft (component: Common Objects).   The supported version that is affected is 9.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise FIN Common Objects Brazil.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of PeopleSoft Enterprise FIN Common Objects Brazil accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of PeopleSoft Enterprise FIN Common Objects Brazil. CVSS 3.1 Base Score 6.5 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/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_