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PeopleSoft Enterprise PeopleTools CVE-2026-101489

| EUVDEUVD-2026-105905 MEDIUM
Incorrect Authorization (CWE-863)
2026-10-20 secalert_us@oracle.com GHSA-vjc3-g97h-mqv6
4.3
CVSS 3.1 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate with low-privileged portal account
  2. Exploit
    Send crafted HTTP request to Portal
  3. Execution
    Bypass access control on data subset
  4. Impact
    Read unauthorized PeopleTools data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization logic validation
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Requires an authenticated low-privileged account (PR:L) with HTTP network access to the PeopleSoft Enterprise PeopleTools Portal component on affected versions 8.61 through 8.63; no user interaction is needed. Exploitation is LIMITED by the authentication requirement (attacker must already have a valid, even if minimal, PeopleSoft session) and by scope - only a subset of PeopleTools-accessible data can be read, with no write or availability impact. Environments that do not expose the Portal to the network, or that tightly restrict and monitor low-privileged accounts, materially reduce realistic risk.

Impact

This is a moderate-severity information-disclosure flaw, not a high-priority emergency. The provided CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N, base 4.3) indicates network-reachable, low-complexity exploitation but requires an already-authenticated low-privileged account (PR:L), and impact is limited to unauthorized read access to a subset of data (C:L) with no integrity or availability effect. No EPSS score, CISA KEV listing, POC, or SSVC decision data was provided, so there is no public exploit identified at time of analysis and no evidence of active exploitation. The 'Authentication Bypass' tag conflicts with the CVSS vector and Oracle's own description: the vector explicitly requires privileges (PR:L) and limits impact to partial confidentiality, which is inconsistent with a true authentication bypass - treat that tag as unreliable and verify against the Oracle CPU advisory. Overall this is a genuine-but-limited issue: real for environments exposing PeopleSoft Portal to semi-trusted authenticated users, but not a drop-everything patch for most defenders absent any exploitation signal.

Exploit ScenarioDerived

An attacker who already holds a low-privileged PeopleSoft account (e.g., a standard portal user) sends crafted HTTP requests to the Portal component of an affected PeopleTools 8.61-8.63 instance. Because attack complexity is low, the attacker reliably reads a subset of PeopleTools-accessible data they should not be able to see. No public exploit code has been identified, and no user interaction or elevated privileges are needed beyond the initial authenticated session.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Moderate-severity information disclosure in Oracle PeopleSoft Enterprise PeopleTools 8.61 through 8.63 allows an authenticated low-privileged attacker with HTTP network access to the Portal component to read a limited subset of PeopleTools-accessible data. The CVSS 3.1 score is 4.3 with confidentiality-only impact and no user interaction, and exploitation is constrained by the need for a valid low-privileged session. No public exploit identified at time of analysis, and no CISA KEV entry was provided.

RemediationAI

Apply the Oracle Critical Patch Update (October 2026) for PeopleSoft Enterprise PeopleTools; the provided data references the advisory at https://www.oracle.com/security-alerts/cpuoct2026.html but does not specify an exact fixed build, so confirm the patched version for 8.61-8.63 in the advisory before upgrading. Until patched, reduce exposure by restricting HTTP access to the Portal component to trusted networks or VPN users, since this can break legitimate remote access; review and remove unnecessary Portal roles and permissions from low-privileged accounts; monitor and alert on anomalous read activity from such accounts, which adds operational overhead; and place the Portal behind a web application firewall with rules targeting unusual data-access patterns, accepting potential false positives. These controls do not fix the underlying flaw but lower the likelihood that a low-privileged authenticated attacker can reach and abuse the Portal.

Affected VersionsENISA

PeopleSoft Enterprise PeopleTools 8.61 ≤8.63

Affected Packages

euvd peoplesoft_enterprise_peopletools no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

PeopleSoft Enterprise PeopleTools is Oracle's application development and runtime platform underlying PeopleSoft applications; the Portal component exposes web-based HTTP endpoints for navigation and content access. The affected range is 8.61 through 8.63, and no CPE strings were supplied to narrow the platform further. CWE is not provided, so the precise root-cause class is not formally mapped; the CVSS vector AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N and the description point to an access-control or authorization weakness that lets a low-privileged authenticated user read a subset of data they should not see, with no integrity or availability impact. Although the source tags include Authentication Bypass, the authoritative assessment requires a valid low-privileged account, so this should be treated as a post-authentication Portal information-disclosure issue rather than an unauthenticated login bypass.

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Severity by source

NVD PRIMARY 4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
vuln.today AI 4.3 MEDIUM

Network HTTP vector with low complexity, but requires an authenticated low-privileged account (PR:L); impact is limited to partial read access, so C:L and I/A:N.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

DescriptionNVD

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Portal). Supported versions that are affected are 8.61-8.63. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools accessible data. CVSS 3.1 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Threat Intelligence Overview

EPSS Score
0.3%
Top 79% exploitable
Prevalence
Medium
Oracle PeopleSoft is common enterprise ERP but not universally deployed
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0
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