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Oracle ORDS CVE-2026-101385

| EUVDEUVD-2026-105801 MEDIUM
Improper Access Control (CWE-284)
2026-10-20 secalert_us@oracle.com GHSA-39rq-fmvq-9q62
4.9
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
    Authenticate with high ORDS privileges
  2. Exploit
    Send crafted HTTP request to Core
  3. Execution
    Abuse integrity flaw
  4. Impact
    Create/modify/delete critical 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 the attacker to already possess high privileges on the target Oracle REST Data Services instance (PR:H) and network reachability to its HTTP interface; there is no authentication-bypass or unauthenticated path per the confirmed CVSS vector. No user interaction is required and attack complexity is low, so a privileged attacker faces few technical hurdles, but the high-privilege prerequisite is the key limiting factor that confines realistic exploitation to malicious insiders or attackers who have already compromised a privileged ORDS account. Only ORDS versions 24.2.0 through 26.1.0 are affected; impact is limited to data integrity with no confidentiality or availability consequences.

Impact

This is a moderate-severity integrity flaw (CVSS 3.1 base 4.9) in Oracle REST Data Services, and the signals converge on it being a lower-priority issue rather than an emergency. The CVSS vector (AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N) tells a consistent story: although the attack is over the network via HTTP with low complexity and no user interaction, it requires PR:H - the attacker must already hold high privileges on the ORDS instance - which sharply limits the realistic attacker population to insiders or already-compromised admin accounts. Impact is confined to integrity (I:H): unauthorized creation, deletion, or modification of ORDS-accessible data, with no confidentiality (C:N) or availability (A:N) impact. No EPSS score, no CISA KEV listing, and no public POC were provided, so there is no evidence of active or likely imminent exploitation - exploitation status is 'no public exploit identified at time of analysis.' One conflict is worth flagging: the input carries an 'Authentication Bypass' tag, but the CVSS vector explicitly requires PR:H (an already-authenticated, highly privileged attacker), which contradicts a genuine authentication-bypass characterization - verify the technique classification with Oracle. Overall this is a 'patch in normal cycle' item, not a drop-everything priority.

Exploit ScenarioDerived

An attacker who already holds high-privilege access to an Oracle REST Data Services instance (for example a rogue administrator or an attacker who has pivoted into an admin session) sends crafted HTTP requests to the ORDS Core component to create, alter, or delete data they should not be able to tamper with. No user interaction is needed and attack complexity is low, but because PR:H is required the attack cannot be launched by an unprivileged or anonymous remote user. No public exploit code was identified at the time of analysis.

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

Oracle ORDS 24.2.0 through 26.1.0 allows a high-privileged, network-positioned attacker to create, delete, or modify critical data through the ORDS HTTP interface, with no confidentiality or availability impact. This is a moderate-severity integrity flaw (CVSS 3.1 base 4.9, AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N) that requires the attacker to already hold high privileges on the target instance; despite the supplied 'Authentication Bypass' tag, the confirmed vector does not describe an authentication-bypass or unauthenticated path. No public exploit identified at time of analysis, and no CISA KEV confirmation or EPSS score is included in the available data.

RemediationAI

Patch status is patch available per vendor advisory, but the supplied data does not include an exact fixed release number. Apply the Oracle REST Data Services fix identified in Oracle's October 2026 Critical Patch Update advisory at https://www.oracle.com/security-alerts/cpuoct2026.html for deployments in the 24.2.0 through 26.1.0 range, using the ORDS patch level Oracle specifies for the deployed version. If the update cannot be applied immediately, restrict network access to the ORDS HTTP interface to trusted management networks or VPN clients, which reduces exposure but can disrupt legitimate API consumers; remove or tightly scope high-privilege ORDS accounts and database roles so fewer identities can reach write-capable endpoints, which limits blast radius but may break administrative automation; enable and alert on audit records for privileged create, update, and delete operations through ORDS, which is detective only rather than preventive; and review ORDS URL mappings and privileges for unnecessary write access, which may require application changes. No public exploit code or KEV-listed exploitation was identified in the provided data, so prioritization can focus on the high-privilege prerequisite and data-integrity exposure.

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 Oracle's Java-based middleware that publishes RESTful HTTP endpoints for Oracle Database schemas and PL/SQL, so the relevant attack surface is the ORDS HTTP listener and its URL mappings. The supplied data does not provide a CWE or CPE; the only affected-version data is EUVD's Oracle REST Data Services 24.2.0 through 26.1.0 range. The root-cause class is therefore unspecified, but the assessed CVSS vector (AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N) confines impact to integrity: a user who already possesses high ORDS privileges can use network access and low-complexity HTTP requests to create, delete, or modify critical data. The 'Authentication Bypass' tag should not be read as an unauthenticated path, because the confirmed vector's PR:H prerequisite contradicts that characterization.

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Severity by source

Vendor (oracle) PRIMARY 4.9 MEDIUM
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
vuln.today AI 4.9 MEDIUM

Network HTTP vector with low complexity and no UI, but the attacker must hold high ORDS privileges (PR:H); impact is integrity-only (I:H), with no confidentiality or availability effect.

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

DescriptionCVE.org

Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle REST Data Services. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle REST Data Services accessible data. CVSS 3.1 Base Score 4.9 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N).

Threat Intelligence Overview

EPSS Score
0.3%
Top 76% exploitable
Prevalence
Medium
common Oracle database middleware, widely used but not in every environment
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
No
Human Impact· derived
Medium

Priority Score

24
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +24
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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