---
id: "CVE-2026-91263"
kind: "vulnerability"
aliases: ["CVE-2026-91263"]
title: "Oracle PeopleSoft PeopleTools: Notification Configuration flaw allows data read and change"
severity: "medium"
cvss: 4.9
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["oracle", "peoplesoft", "peopletools", "self-hosted", "vendor"]
not_affected_if: ["internal-only-network", "unaffected-release"]
published_at: "2026-10-20T22:20:27+00:00"
first_seen_at: "2026-10-23T21:57:26+00:00"
updated_at: "2026-10-25T04:31:11+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91263", "first_seen_at": "2026-10-23T21:57:26+00:00"}]
---

# Oracle PeopleSoft PeopleTools: Notification Configuration flaw allows data read and change

A flaw in the Notification Configuration component of Oracle PeopleSoft Enterprise PeopleTools 8.61 through 8.63 lets a low-privileged user reach data over HTTP. A successful attack can read a subset of data and modify or delete some accessible data.

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

## How to check

- Confirm the PeopleTools release in use: `8.61`, `8.62` or `8.63` are affected per the description
- Check whether the Notification Configuration component is reachable over HTTP from untrusted networks
- Review Oracle's Critical Patch Update advisory for the patched PeopleTools release

## Fix

- Apply the Oracle Critical Patch Update for PeopleSoft PeopleTools that covers `8.61` through `8.63`
- Restrict network access to the PeopleSoft web tier until patched

## Timeline

- 2026-10-23T21:57:26+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91263

## From the sources

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Notification Configuration).  Supported versions that are affected are 8.61-8.63. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools.  While the vulnerability is in PeopleSoft Enterprise PeopleTools, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of PeopleSoft Enterprise PeopleTools accessible data as well as  unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools accessible data. CVSS 3.1 Base Score 4.9 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N).

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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_