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PeopleSoft PeopleTools EUVDEUVD-2026-105904

| CVE-2026-101488 MEDIUM
Missing Authentication for Critical Function (CWE-306)
2026-10-20 secalert_us@oracle.com GHSA-7qfj-94q4-v9mg
6.5
CVSS 3.1 · Vendor: oracle
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Attack ChainAIDerived

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

  1. Access
    Reach PeopleTools HTTP endpoint
  2. Exploit
    Send crafted request to Business Interlink
  3. Execution
    Trigger unauthenticated flaw
  4. Impact
    Read subset of data / induce partial DoS

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

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

Exploitation Conditions

Exploitation targets the Business Interlink component of PeopleSoft Enterprise PeopleTools versions 8.61 through 8.63, reachable over HTTP. Per the CVSS vector (AV:N/AC:L/PR:N/UI:N), no authentication, no user interaction, and no special non-default configuration are required - Oracle explicitly describes it as 'easily exploitable.' The practical limiting factors are: the PeopleTools HTTP interface (and specifically the Business Interlink component) must be network-reachable to the attacker, and the deployment must run an affected version (8.61-8.63); versions outside this range and network-segmented/unexposed deployments are not exploitable. Impact is inherently bounded to reading a subset of accessible data and causing a partial, not full, denial of service.

Impact

Signals are moderate and internally consistent. The Oracle-provided CVSS 3.1 vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L, base 6.5) describes an easily exploitable, network-reachable (HTTP), unauthenticated (PR:N) flaw requiring no user interaction - meaning exploitation is technically low-barrier. However, impact is deliberately limited: only low confidentiality (read access to a SUBSET of data) and low availability (PARTIAL denial of service), with no integrity impact (I:N). No EPSS score, CISA KEV listing, or public POC is present in the provided data, so there is no evidence of active or probable exploitation - this is a patch-in-normal-cycle issue rather than an emergency. The description and CVSS agree (both indicate network/HTTP, unauthenticated), so there is no vector/description conflict to flag. Net: a genuine but medium-priority vulnerability - easy to exploit but low blast radius, and currently no exploitation signal to elevate it.

Exploit ScenarioDerived

A remote, unauthenticated attacker sends crafted HTTP requests to an internet-facing or network-reachable PeopleSoft PeopleTools Business Interlink endpoint, requiring no credentials, no user interaction, and low attack complexity. The attacker reads a limited subset of PeopleTools-accessible data and/or degrades service availability (partial DoS). No public exploit code is identified at time of analysis, so any current attack would require attacker-developed tooling.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Unauthenticated HTTP access to the Business Interlink component in Oracle PeopleSoft Enterprise PeopleTools 8.61-8.63 can expose a limited subset of accessible application data and trigger partial denial of service. The flaw is rated CVSS 6.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L), requiring no credentials or user interaction; no public exploit code or active exploitation has been identified at time of analysis.

RemediationAI

Apply the fix from Oracle's October 2026 Critical Patch Update for PeopleSoft Enterprise PeopleTools 8.61-8.63; the vendor advisory is https://www.oracle.com/security-alerts/cpuoct2026.html. Patch availability is indicated by that vendor advisory, but the supplied data does not specify an exact fixed build, so confirm the patched PeopleTools release in the advisory before deployment. If immediate patching is not possible, restrict HTTP access to Business Interlink endpoints to trusted networks or disable Business Interlink where it is not required-trade-offs include broken external integrations and possible business disruption. Monitor for anomalous read activity and partial service degradation; network segmentation reduces exposure but does not remediate the flaw.

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

Oracle PeopleSoft Enterprise PeopleTools is the runtime and development platform underlying PeopleSoft applications, and Business Interlink is an integration component used to connect PeopleSoft with external systems. The vulnerability is reachable over HTTP and, per Oracle, is easily exploitable by an unauthenticated network attacker. The supplied CWE field is N/A, so the root-cause class is not classified in the input data; the practical exposure depends on whether the PeopleTools HTTP interface and Business Interlink endpoints are network-reachable and whether the deployment runs an affected version (8.61-8.63). The CVSS vector confirms network access, low attack complexity, no privileges, and no user interaction, while impact is bounded to limited confidentiality loss and partial availability loss.

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Severity by source

Vendor (oracle) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
vuln.today AI 6.5 MEDIUM

Oracle describes easily exploitable unauthenticated HTTP access (AV:N/AC:L/PR:N/UI:N); impact is limited subset read (C:L) and partial DoS (A:L) with no integrity effect (I:N).

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Business Interlink). 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 read access to a subset of PeopleSoft Enterprise PeopleTools accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of PeopleSoft Enterprise PeopleTools. CVSS 3.1 Base Score 6.5 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L).

Threat Intelligence Overview

EPSS Score
0.4%
Top 70% exploitable
Prevalence
High
widely deployed enterprise ERP/HCM suite across large firms, government, and universities
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 0.4%
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
Yes
Human Impact· derived
Medium

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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