---
id: "CVE-2026-91497"
kind: "vulnerability"
aliases: ["CVE-2026-91497"]
title: "Oracle PeopleSoft PeopleTools: unauthenticated HTTP flaw allows limited data changes"
severity: "medium"
cvss: 5.3
epss: 0.00282
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["oracle", "other", "peoplesoft", "peopletools", "self-hosted"]
not_affected_if: ["unsupported-version"]
published_at: "2026-10-20T22:20:54+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-2026-91497", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-91497", "first_seen_at": "2026-10-25T12:38:51+00:00"}]
---

# Oracle PeopleSoft PeopleTools: unauthenticated HTTP flaw allows limited data changes

Oracle PeopleSoft Enterprise PeopleTools versions 8.61 through 8.63 contain a flaw in the Updates Environment Management component. A network attacker can send HTTP requests without logging in and make unauthorized update, insert or delete changes to 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: unknown
- Check whether PeopleTools is at 8.61, 8.62 or 8.63 in the Oracle patch records: unknown

## Fix

- Apply the Oracle Critical Patch Update fix for PeopleSoft PeopleTools 8.61 to 8.63: unknown
- Restrict HTTP access to the PeopleSoft web tier until patched: unknown

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-91497
- 2026-10-25T12:38:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-91497

## From the sources

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Updates Environment Mgmt).  Supported versions that are affected are 8.61-8.63. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of PeopleSoft Enterprise PeopleTools accessible data. CVSS 3.1 Base Score 5.3 (Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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_