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Oracle ORDS CVE-2026-101379

| EUVDEUVD-2026-105795 MEDIUM
Improper Access Control (CWE-284)
2026-10-20 secalert_us@oracle.com GHSA-cmqw-j6gp-hcg9
5.3
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 ORDS HTTP endpoint on network
  2. Exploit
    Send crafted request to ADP component
  3. Impact
    Receive unauthorized subset of 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

No special configuration conditions are stated in the Oracle description: exploitation requires only network HTTP access to an Oracle REST Data Services instance running an affected version (24.2.0 through 26.1.0) with the ADP component reachable, against which an unauthenticated attacker (PR:N) can act without user interaction. The principal limiting factors are therefore network reachability of the ORDS endpoint (internal-only deployments behind a proxy/VPN are far less exposed than internet-facing ones) and running an affected version; impact is also inherently bounded to read access to a subset of data (no write/modify or service disruption), which caps the realistic damage.

Impact

This is a medium-severity (CVSS 3.1 base 5.3) information-disclosure flaw in Oracle REST Data Services (ORDS), component ADP. The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) is internally consistent and credible: network-reachable over HTTP, low attack complexity, no privileges, and no user interaction, with impact limited to low confidentiality (unauthorized read access to a subset of data) and no integrity or availability impact. Oracle's own text ('easily exploitable, unauthenticated attacker with network access') aligns with the PR:N/AC:L metrics, so there is no vector-vs-description conflict here. However, the key exploitation-maturity signals are absent: no EPSS score was provided, the CVE is NOT on CISA KEV, and no public POC is referenced - so there is no public exploit identified at time of analysis. The practical consequence is that while the issue is trivially reachable in principle, its limited (partial-confidentiality-only) impact and lack of known exploitation make it a moderate, patch-in-normal-cycle priority rather than an emergency, EXCEPT for internet-exposed ORDS endpoints where unauthenticated data leakage warrants faster remediation. Note: SSVC/automatable and technical-impact fields were not supplied in the input, so that framework could not be applied - assessment rests on CVSS plus the Oracle description only.

Exploit ScenarioDerived

An unauthenticated attacker who can reach an ORDS HTTP endpoint sends a crafted request to the ADP component and receives back a subset of data it should not be able to read, without needing credentials or user interaction. No public exploit code was identified at time of analysis, so this reflects the capability implied by the CVSS vector rather than an observed in-the-wild technique.

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

Unauthenticated information disclosure in Oracle REST Data Services (ORDS) 24.2.0 through 26.1.0 allows a network attacker to read a limited subset of ORDS-accessible data through the ADP component over HTTP. Oracle scores it CVSS 3.1 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N), and no public exploit was identified at time of analysis. Internet-facing ORDS instances with ADP reachable are most exposed, while internal-only deployments behind VPN or proxy are materially lower risk.

RemediationAI

Apply the ORDS fix listed in Oracle's Critical Patch Update October 2026 advisory (https://www.oracle.com/security-alerts/cpuoct2026.html); the supplied data does not give an exact fixed version, so confirm the patched ORDS build in the advisory before upgrading and validate the ADP component after the update. If upgrading cannot be done immediately, reduce exposure by placing ORDS behind a VPN, reverse proxy, or network allowlist and blocking unauthenticated access to ADP URL paths-trade-offs include breaking legitimate external API clients and requiring allowlist maintenance. If ADP is not required, disable that component or block its endpoints at the proxy, but first confirm no dependent application relies on it. Monitor HTTP access logs for anomalous unauthenticated requests to ADP endpoints while remediation is pending.

Affected VersionsENISA

Oracle REST Data Services 24.2.0 ≤26.1.0

Affected Packages

euvd oracle_rest_data_services 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 REST Data Services (ORDS) is a Java-based middleware layer that exposes Oracle Database content through REST endpoints; the affected ADP component is reachable over HTTP in versions 24.2.0 through 26.1.0. The issue is consistent with an authorization/access-control weakness (no CWE was supplied) that lets an unauthenticated remote attacker read a subset of data available through ORDS, matching the CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N and the feed's Authentication Bypass tag. Because the scope is unchanged and only confidentiality is impacted, exploitation does not imply data modification, deletion, or denial of service, and the practical exposure is bounded by which ADP endpoints are network-reachable.

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Severity by source

Vendor (oracle) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vuln.today AI 5.3 MEDIUM

Oracle describes unauthenticated HTTP-based access (AV:N/AC:L/PR:N/UI:N) yielding partial read access only, so C:L with I:N/A:N and unchanged scope.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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
None

DescriptionCVE.org

Vulnerability in Oracle REST Data Services (component: ADP). Supported versions that are affected are 24.2.0-26.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle REST Data Services. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle REST Data Services accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Threat Intelligence Overview

EPSS Score
0.3%
Top 77% exploitable
Prevalence
Medium
Oracle middleware common in Oracle DB shops, 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
Yes
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
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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