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Oracle Purchasing EUVDEUVD-2026-61762

| CVE-2026-70811 HIGH
Improper Access Control (CWE-284)
2026-08-18 secalert_us@oracle.com GHSA-2rg2-9c92-g8xj
8.1
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 valid low-privilege Oracle EBS credentials
  2. Exploit
    Access Oracle Purchasing Internal Operations via HTTP
  3. Execution
    Send crafted request bypassing authorization controls
  4. Impact
    Read or manipulate critical procurement data

Vulnerability Assessment

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

1 technique across 1 tactic: Defense Evasion

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

Exploitation Conditions

Exploitation requires possession of any valid low-privileged Oracle E-Business Suite authenticated account with network-level HTTP access to the Oracle Purchasing application tier - there is no requirement for elevated roles, administrative access, or special configuration beyond a basic EBS login. No user interaction is required (UI:N), and no unusual environmental conditions must be met (AC:L). The vulnerability is limited to the Internal Operations component of Oracle Purchasing specifically; EBS instances that do not deploy the Purchasing module are not affected. The primary constraint on exploitation is the authenticated session requirement (PR:L) - unauthenticated external attackers cannot exploit this directly without first obtaining credentials. Environments that enforce VPN-only or IP-allowlisted access to the EBS HTTP tier reduce the reachable attacker population despite the AV:N rating. The 'Authentication Bypass' tag suggests the authorization failure allows a minimal-privilege session to escalate effective data access far beyond its intended scope within the Purchasing module.

Impact

The vendor-assigned CVSS 3.1 score of 8.1 is well-supported by the metric breakdown: network-accessible (AV:N), low complexity (AC:L), low-privilege requirement (PR:L), no user interaction (UI:N), with high confidentiality and integrity impact. The combination of AC:L and PR:L means any attacker who can obtain a valid low-privilege EBS account - via phishing, credential stuffing, or insider access - can immediately exploit this without additional environmental setup. The 'Authentication Bypass' tag amplifies the effective risk: the flaw likely allows a low-privileged user to escalate their effective authorization level to full data access within the Purchasing module, making the PR:L floor the only real barrier. No EPSS score was available in the source data, and the CVE is not in the CISA KEV catalog, so no confirmed active exploitation exists. No public POC has been identified. However, Oracle EBS is heavily deployed in regulated enterprise environments where procurement data - supplier pricing, contract terms, purchase orders - carries significant business sensitivity; unauthorized data manipulation could facilitate supply chain fraud. The absence of availability impact (A:N) means this is a data exfiltration and data integrity threat, not an operational disruption risk. Overall, this is a genuine high priority for Oracle EBS customers running affected versions, not a high-CVSS-but-low-real-risk finding.

Exploit ScenarioDerived

An attacker with a low-privileged Oracle EBS account - obtained via phishing a supplier portal user, purchasing department employee credential theft, or a disgruntled insider - sends crafted HTTP requests to the Oracle Purchasing Internal Operations endpoint, exploiting improper authorization enforcement to bypass the module's access controls. The attacker reads all procurement data including purchase orders, pricing agreements, and supplier contracts, and can create or delete purchasing records to facilitate supply chain fraud or conceal unauthorized transactions. No public exploit code has been identified, but the low attack complexity (AC:L) and network vector mean exploitation is straightforward once valid credentials are available.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Aug 19, 2026

Oracle Purchasing versions 12.2.5 through 12.2.15 within Oracle E-Business Suite expose an authorization bypass flaw in the Internal Operations component, allowing any authenticated low-privileged network user to gain complete read access to all purchasing data and perform unauthorized creation, deletion, or modification of critical records. Tagged as an Authentication Bypass by ENISA EUVD-2026-61762, the vulnerability is exploitable over HTTP with no user interaction and low attack complexity, making it a high-priority remediation target in Oracle EBS deployments. No public exploit code has been identified and the vulnerability is not currently listed in the CISA KEV catalog at time of analysis.

RemediationAI

Apply Oracle's Critical Security Patch Update (CPU) for August 2026, which addresses this vulnerability across Oracle Purchasing 12.2.5-12.2.15; the advisory is available at https://www.oracle.com/security-alerts/cspuaug2026.html. No exact patched version number was provided in the available data - administrators should consult the Oracle CPU advisory directly to identify the precise patch bundle or AD patch number required for their EBS environment. As a compensating control during the patch deployment window, restrict HTTP access to the Oracle EBS application tier using network-layer controls (firewall rules, VPN enforcement) to limit exposure to authorized IP ranges only, noting that this may impact legitimate remote users and requires business coordination. Additionally, audit and reduce the number of active low-privileged accounts with access to Oracle Purchasing Internal Operations, since PR:L means any such account is a viable attack vector - disabling dormant or unnecessary accounts directly reduces the attack surface without application-layer trade-offs.

Affected VersionsENISA

Oracle Purchasing 12.2.5 ≤12.2.15

Affected Packages

euvd oracle_purchasing 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 E-Business Suite (EBS) is Oracle's integrated enterprise resource planning platform; Oracle Purchasing is its procurement module handling purchase orders, requisitions, approvals, and supplier management. The affected sub-component, Internal Operations, manages backend procurement workflows exposed over HTTP. The CVSS vector AV:N/AC:L/PR:L/UI:N/S:U indicates the flaw is reachable over the network from any authenticated session without special environmental conditions. The CWE is listed as N/A in available data, but the 'Authentication Bypass' tag from EUVD metadata points to an authorization control failure - consistent with CWE-284 (Improper Access Control) or CWE-862 (Missing Authorization) - where a low-privileged session bypasses intended permission boundaries to access or modify data scoped to higher-privileged roles. The CVSS impact profile (C:H/I:H/A:N) confirms data theft and data manipulation are achievable while service availability is unaffected.

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Severity by source

Vendor (oracle) PRIMARY 8.1 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
vuln.today AI 8.1 HIGH

Network-accessible over HTTP with only low-privilege credentials required; high C and I confirmed by described full data read and modification access; A:N as availability impact is explicitly absent.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

DescriptionCVE.org

Vulnerability in the Oracle Purchasing product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.5-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Purchasing. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Purchasing accessible data as well as unauthorized access to critical data or complete access to all Oracle Purchasing accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

Executive ViewAI

Why It Matters

Oracle E-Business Suite Purchasing (versions 12.2.5-12.2.15) contains an authorization bypass vulnerability allowing authenticated low-privilege users to access all purchasing data and perform unauthorized modifications to critical procurement records. This threatens financial controls, data integrity, and audit compliance across organizations dependent on EBS for procurement operations. No vendor patch is currently available, requiring immediate implementation of compensating controls.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations include network segmentation isolating EBS Purchasing modules from general user networks, role-based access control enforcement restricting low-privileged user permissions within the Internal Operations component, comprehensive audit logging and monitoring of all purchasing data access and modifications, and periodic security reviews of purchasing records for unauthorized changes. Monitor Oracle security advisories for patch availability and plan immediate deployment upon release.

Threat Intelligence Overview

EPSS Score
0.4%
Top 68% exploitable
Prevalence
High
widely deployed ERP suite in large enterprise environments globally
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 HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
High

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +40
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.

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