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PeopleSoft PeopleTools EUVDEUVD-2026-106391

| CVE-2026-87350 MEDIUM
Incorrect Authorization (CWE-863)
2026-10-20 secalert_us@oracle.com GHSA-f8j4-r89h-w33c
4.5
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
    Obtain low-privileged logon to PeopleTools host
  2. Exploit
    Exploit high-complexity flaw in Security component
  3. Execution
    Gain limited read/write to PeopleTools data
  4. Impact
    Cause partial denial of service

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

Exploitation requires (1) a valid low-privileged account on PeopleSoft Enterprise PeopleTools and (2) local logon access to the infrastructure/host where PeopleTools executes - this is not remotely exploitable over the network. Oracle rates the attack complexity as high ('difficult to exploit'), indicating success depends on specific, non-trivial runtime conditions rather than a reliable one-shot trigger. No end-user interaction is required (UI:N). The combination of mandatory authentication, mandatory local access, and high complexity substantially limits realistic exploitation to insiders or an attacker who has already established a foothold on the server. Only PeopleTools versions 8.61 through 8.63 are affected.

Impact

This is a genuinely low-to-moderate priority issue despite affecting a major enterprise product. The CVSS 3.1 base score is 4.5 (Medium), and the vector itself argues against urgency: AV:L requires the attacker to already have a logon to the infrastructure where PeopleTools executes (not network-exploitable), AC:H means Oracle explicitly classifies this as 'difficult to exploit,' and PR:L means the attacker must already hold a low-privileged authenticated account. Impacts are only partial across the board (C:L/I:L/A:L), scope is unchanged (S:U), and the described outcome is limited unauthorized read, limited update/insert/delete, and a partial denial of service - not full compromise. No EPSS score, CISA KEV listing, or public POC is present in the provided data, so there is no signal of active or probable exploitation; absence of these is consistent with a locally-exploitable, hard-to-exploit, low-privilege-requiring flaw that is unlikely to be mass-exploited. No conflicting signals were found - the description and CVSS vector agree that this is a local, authenticated, high-complexity issue. The main caveat is that no CWE is assigned and the Oracle advisory provides no technical root-cause detail, so the exact mechanism cannot be independently verified.

Exploit ScenarioDerived

An attacker who already holds a low-privileged account and interactive/logon access to the server infrastructure running PeopleSoft Enterprise PeopleTools leverages a hard-to-trigger flaw in the Security component to read a subset of application data, make limited unauthorized modifications, and degrade availability. Because exploitation is rated high-complexity (AC:H) and local (AV:L), success likely depends on winning a race or meeting specific runtime conditions rather than a simple repeatable action. No public exploit code is identified at time of analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

PeopleSoft PeopleTools 8.61 through 8.63 allows a low-privileged user with local logon access to the PeopleTools host to read and modify limited application data and cause a partial denial of service. Exploitation is rated difficult (CVSS 4.5, AV:L/AC:H/PR:L) and requires an established account plus local access, so risk is mainly from insiders or attackers already on the server. No public exploit was identified at time of analysis, and Oracle has published an October 2026 Critical Patch Update advisory covering the issue.

RemediationAI

Patch status: Patch available per vendor advisory. Apply the Oracle Critical Patch Update (October 2026) fix for PeopleSoft Enterprise PeopleTools; the provided data does not specify an exact fixed version, so validate the minimum patched release against the Oracle advisory at https://www.oracle.com/security-alerts/cpuoct2026.html before upgrading. Until patching is complete, restrict local logon access to PeopleTools hosts to trusted administrative accounts and enforce least privilege for application users, which reduces exposure but may disrupt legitimate administrative workflows. Monitor PeopleTools audit and database logs for anomalous data changes or partial service failures, and isolate affected PeopleTools servers from broad interactive access where operationally feasible.

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 runtime and development platform for PeopleSoft applications, and the affected Security component governs platform-level access controls. Oracle has not published a CWE mapping or root-cause detail for CVE-2026-87350; the CVSS vector (AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L) indicates a local, high-complexity attack that requires a valid low-privileged account and no user interaction, with limited confidentiality, integrity, and availability impact. The flaw permits unauthorized insert/update/delete and read access to a subset of PeopleTools-accessible data, plus partial denial of service; no network vector or privilege escalation to full system compromise is described.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (oracle) PRIMARY 4.5 MEDIUM
AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
vuln.today AI 4.5 MEDIUM

Requires a local logon and a low-privileged account with high-complexity exploitation, so AV:L/PR:L/AC:H; impacts are partial across C/I/A per the advisory.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Security). Supported versions that are affected are 8.61-8.63. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where PeopleSoft Enterprise PeopleTools executes 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 as well as 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 4.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L).

Threat Intelligence Overview

EPSS Score
0.1%
Top 99% exploitable
Prevalence
Medium
widely-used enterprise ERP/HCM suite, but concentrated in large organizations
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 0.1%
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
Defer
Exploitation· derived
None
System Exposure· derived
Small
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

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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