Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach exposed ORDS HTTP endpoint
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ExploitSend crafted HTTP request to Core
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ExecutionBypass authorization checks
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ImpactPerform unauthorized insert/update/delete on accessible 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: the vector AV:N/AC:L/PR:N/UI:N indicates remote unauthenticated exploitation over HTTP against a reachable Oracle REST Data Services Core instance running an affected version (24.2.0 through 26.1.0). The primary limiting factor is network reachability - the ORDS HTTP endpoint must be accessible to the attacker (internet-exposed or reachable within the network segment). Impact is further limited to partial integrity: only 'some' ORDS-accessible data can be written (insert/update/delete), with no data disclosure and no service-availability loss. Instances not exposed beyond trusted internal networks, or running versions outside the affected range, are not reachable by this vector. |
| Impact | This is a medium-severity, integrity-only issue (CVSS 3.1 Base 5.3, vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) rather than a top-tier priority. The CVSS signals are internally consistent: network-reachable (AV:N), low attack complexity (AC:L), no privileges (PR:N), and no user interaction (UI:N), so it is trivially reachable by any unauthenticated HTTP client - but impact is capped at partial integrity (I:L) with NO confidentiality (C:N) and NO availability (A:N) loss, meaning an attacker can perform unauthorized update/insert/delete to SOME accessible data but cannot read data or take the service down. No EPSS score was provided, so exploitation probability cannot be quantified; the CVE is NOT in CISA KEV and no public POC is referenced, so there is no evidence of active exploitation or available exploit code. The 'Authentication Bypass' tag is somewhat broader than the description, which states unauthenticated attackers gain limited write access rather than explicitly confirming an auth-bypass mechanism - treat the tag as indicative, not confirmed. Net: easily exploitable and unauthenticated (which raises urgency for internet-exposed ORDS endpoints), but the limited, integrity-only blast radius keeps this below critical. Patch via the Oracle October 2026 CPU when it reaches you. |
| Exploit ScenarioDerived | An unauthenticated attacker who can reach an internet- or network-exposed Oracle REST Data Services endpoint sends a crafted HTTP request to the Core component and obtains unauthorized insert/update/delete access to a subset of ORDS-accessible data, without needing credentials or user interaction. No public exploit code or active exploitation has been identified at time of analysis, so this remains a theoretical but low-complexity scenario. |
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Alert meAnalysisAIv1 – Oct 21, 2026
Unauthenticated HTTP access to Oracle REST Data Services Core (Oracle ORDS) versions 24.2.0 through 26.1.0 can allow unauthorized insert, update, or delete operations against some ORDS-accessible data. The CVSS 3.1 score is 5.3 with vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N, so the issue is integrity-only, with no confidentiality or availability impact. No public exploit was identified at time of analysis and no CISA KEV confirmation was provided; risk is concentrated on ORDS HTTP endpoints reachable from untrusted networks.
RemediationAI
Patch available per Oracle's CPU advisory at https://www.oracle.com/security-alerts/cpuoct2026.html; the supplied data does not state an exact fixed ORDS version, so verify the CPU-fixed release covering 24.2.0-26.1.0 before upgrading. Until the patch is applied, restrict network access to the ORDS HTTP endpoint to trusted clients or network segments, since AV:N/PR:N/UI:N makes internet or broad internal exposure the main precondition; the trade-off is reduced legitimate API reachability. Monitor ORDS and database logs for unexpected insert, update, or delete activity and disable unused REST endpoints or tighten database privileges where operationally feasible, accepting that these controls may break legitimate integrations if applied too broadly.
Affected VersionsENISA
Affected Packages
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 is a Java-based middleware layer that exposes Oracle Database resources through HTTP/REST endpoints; the affected component is ORDS Core, and the vulnerable range is 24.2.0 through 26.1.0 as reported by Oracle and EUVD. The supplied CWE field is N/A, so the data does not map the issue to a specific weakness class; the tags include Authentication Bypass, while Oracle's description and the CVSS vector characterize the outcome as unauthenticated modification of some accessible data rather than disclosure or service disruption. Exploitation requires network reachability to the ORDS HTTP service, with AV:N/AC:L/PR:N/UI:N indicating no authentication, no user interaction, and low attack complexity once the endpoint is reachable.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Description confirms unauthenticated network HTTP access (AV:N/AC:L/PR:N/UI:N) with limited unauthorized write access and no read or availability impact (C:N/I:L/A:N).
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
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 unauthenticated attacker with network access via HTTP to compromise Oracle REST Data Services. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle REST Data Services accessible data. CVSS 3.1 Base Score 5.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
EUVD-2026-105775
GHSA-x6v4-phr4-hpr4
NVD
CVE.org
EPSS
Exploit-DB