Skip to main content

Oracle iSupplier Portal CVE-2026-70779

| EUVDEUVD-2026-61730 HIGH
Improper Access Control (CWE-284)
2026-08-18 secalert_us@oracle.com GHSA-2h3q-mqgh-rgq6
7.4
CVSS 3.1 · Vendor: oracle
View

Attack ChainAIDerived

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

  1. Access
    Identify network-exposed iSupplier Portal HTTP endpoint
  2. Delivery
    Probe Internal Operations component for authentication bypass surface
  3. Exploit
    Craft requests satisfying AC:H exploitation conditions
  4. Execution
    Bypass authentication controls
  5. Impact
    Read all iSupplier Portal data or inject unauthorized data modifications

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

The target must be running Oracle iSupplier Portal version 12.2.3 through 12.2.15 as part of Oracle E-Business Suite, with the Internal Operations component accessible over HTTP from the attacker's network position. No authentication or special user account is required (PR:N). However, exploitation is bounded by AC:H - the attacker must satisfy specific, non-trivial exploitation conditions whose precise nature is not disclosed (likely timing-sensitive, specific HTTP request structure, or session-state dependent based on the Authentication Bypass classification). Installations that are not network-reachable from untrusted zones, or that are protected by strict IP allowlisting for supplier access, face materially reduced risk. There is no user interaction requirement (UI:N), so social engineering is not part of the attack path. Availability impact is absent (A:N), meaning exploitation targets data confidentiality and integrity exclusively.

Impact

The CVSS 3.1 score of 7.4 reflects a network-reachable (AV:N), unauthenticated (PR:N) attack path with dual high-severity impacts on confidentiality and integrity, materially tempered by high attack complexity (AC:H). The AC:H designation is the critical differentiating factor: it reduces the likelihood of widespread opportunistic exploitation and makes automated, mass-scale attacks less probable compared to AC:L vulnerabilities of similar scoring. No EPSS score was supplied in the source intelligence, limiting probabilistic exploitation forecasting. The vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog, and no public exploit code has been identified - consistent with a newly disclosed CPU finding rather than an actively weaponized flaw. However, the Authentication Bypass classification combined with access to all supplier portal data represents a serious threat to Oracle EBS-dependent supply chains, where data integrity underpins procurement workflows. Real-world risk is moderate-to-high for organizations with network-exposed iSupplier Portal instances, but the AC:H barrier meaningfully raises the attacker skill floor.

Exploit ScenarioDerived

An unauthenticated attacker with HTTP access to a network-exposed Oracle iSupplier Portal crafts specific requests targeting the Internal Operations component, exploiting an authentication bypass to gain access without valid credentials. Exploitation requires meeting the AC:H condition - such as a specific request sequence, timing window, or session-handling anomaly - placing this above trivial scripted attacks but within reach of a motivated attacker with knowledge of Oracle EBS internals. Once access is established, the attacker reads all supplier portal data (purchase orders, invoices, supplier PII) or injects malicious modifications to critical procurement records.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Aug 19, 2026

Oracle iSupplier Portal versions 12.2.3 through 12.2.15 within Oracle E-Business Suite exposes an authentication bypass in the Internal Operations component that allows unauthenticated network attackers to fully compromise supplier data confidentiality and integrity via HTTP. Successful exploitation grants complete read access to all iSupplier Portal data and the ability to create, delete, or modify critical data records - high-value targets in supply chain environments. Oracle patched this in the August 2026 Critical Patch Update; no public exploit code or CISA KEV listing has been identified at time of analysis, though the AC:H rating indicates non-trivial but achievable exploitation conditions.

RemediationAI

Apply Oracle's August 2026 Critical Patch Update, documented at https://www.oracle.com/security-alerts/cspuaug2026.html, which contains the official fix for this vulnerability. Oracle does not publicly disclose exact patched version strings outside of My Oracle Support (MOS) - administrators should consult MOS and cross-reference the August 2026 CPU advisory to confirm the correct patch bundle for their EBS environment. If immediate patching is not feasible, restrict HTTP access to the iSupplier Portal and its Internal Operations component via network-layer controls, limiting connectivity to known supplier IP ranges and blocking access from untrusted networks at the perimeter or load-balancer level. Additionally, enable enhanced logging on Oracle EBS web tier access logs to detect anomalous unauthenticated request patterns targeting Internal Operations endpoints. Note that network-level IP restrictions reduce exposure surface but do not remediate the underlying authentication bypass - patching remains the only complete resolution.

Affected VersionsENISA

Oracle iSupplier Portal 12.2.3 ≤12.2.15

Affected Packages

euvd oracle_isupplier_portal 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 iSupplier Portal is a web-based self-service application embedded within Oracle E-Business Suite (EBS) that allows external suppliers to manage purchase orders, invoices, and shipment notifications. The affected component - Internal Operations - is reachable over HTTP (AV:N in the CVSS vector), indicating a web-tier exposure consistent with an internet- or intranet-facing portal. No CWE is formally assigned, but the EUVD tag 'Authentication Bypass' identifies the root cause class: insufficient or circumventable authentication controls within this component. The AC:H rating signals that exploitation requires meeting specific conditions - such as precise request sequencing, race conditions, or session-handling anomalies - rather than a trivially exploitable flaw. Affected versions span 12.2.3 through 12.2.15, a broad range covering several years of EBS deployments.

Know when Isupplier Portal gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (oracle) PRIMARY 7.4 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
vuln.today AI 7.4 HIGH

Network-reachable authentication bypass with full data confidentiality and integrity impact, but AC:H reflects non-trivial exploitation conditions; no availability impact per description.

3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
4.0 AV:N/AC:H/AT:P/PR:N/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
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

DescriptionCVE.org

Vulnerability in the Oracle iSupplier Portal product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle iSupplier Portal. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle iSupplier Portal accessible data as well as unauthorized access to critical data or complete access to all Oracle iSupplier Portal accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).

Executive ViewAI

Why It Matters

Oracle iSupplier Portal (versions 12.2.3-12.2.15) contains an unauthenticated authentication bypass vulnerability that allows attackers to access and manipulate critical supplier data without valid credentials. This exposes your organization to supply chain risk, vendor data breaches, and potential business disruption. The August 2026 Critical Patch Update resolves this vulnerability and should be deployed urgently.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.3%
Top 73% exploitable
Prevalence
Medium
widely deployed in large enterprises using Oracle EBS for supply chain
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 0.3%
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

37
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +37
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.

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy