Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach ORDS GraphQL endpoint over HTTP
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ExploitSend crafted GraphQL query
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ExecutionBypass access restriction on data subset
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ImpactRead unauthorized data
Vulnerability Assessment
| Exploitation Conditions | Requires an Oracle REST Data Services deployment (versions 24.2.0 through 26.1.0) with the GraphQL component reachable over HTTP from the attacker's network position. No authentication, credentials, or user interaction are needed (PR:N/UI:N). Limiting factors: the GraphQL endpoint/component must be exposed and in use, and the disclosure is confined to a subset of ORDS-accessible data (C:L) with no write or denial-of-service capability, which meaningfully caps real-world impact. |
| Impact | This is a moderate-severity information disclosure flaw (CVSS 3.1 base 5.3) in Oracle REST Data Services' GraphQL component. The CVSS vector (AV:N/AC:L/PR:N/UI:N) signals the most concerning combination for reach - network-based, low-complexity, unauthenticated, no user interaction - so the barrier to attempt is genuinely low. However, impact is tightly bounded: C:L with I:N/A:N means only a subset of ORDS-accessible data is readable, with no integrity or availability effect and no scope change (S:U). No EPSS score, CISA KEV listing, or public POC is present in the provided data, so there is no evidence of active exploitation or weaponization. The net picture is a real but limited-priority issue: easy to reach but low-consequence, typical of the Oracle Critical Patch Update info-disclosure class. Patch during the normal CPU cycle rather than as an emergency, unless the affected ORDS instance fronts sensitive data. Note a labeling tension: the input tags this 'Authentication Bypass,' but the metrics and description describe unauthorized read of a data subset (an information disclosure), not a full authentication bypass - treat the tag with caution. |
| Exploit ScenarioDerived | An unauthenticated attacker with network HTTP access to an ORDS instance exposing the GraphQL component sends crafted GraphQL queries to the endpoint and retrieves a subset of data they should not be able to read. No credentials, user interaction, or special timing are required, but the disclosure is limited to a subset of ORDS-accessible data. No public exploit code was identified in the provided intelligence. |
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Alert meAnalysisAIv1 – Oct 21, 2026
Unauthenticated information disclosure in Oracle REST Data Services' GraphQL component (versions 24.2.0 through 26.1.0) lets a remote attacker with HTTP access read a subset of data accessible through ORDS, with no credentials or user interaction required. Rated 5.3 by Oracle and carrying a matching assessed vector (AV:N/AC:L/PR:N/UI:N/C:L/I:N/A:N), the flaw is confined to confidentiality impact - no writes, no denial of service. Real-world exposure depends on whether the GraphQL endpoint is actually deployed and reachable; no public exploit code or confirmed active exploitation was identified at time of analysis.
RemediationAI
Apply the Oracle October 2026 Critical Patch Update, which contains the fix for the GraphQL component; the advisory https://www.oracle.com/security-alerts/cpuoct2026.html lists the exact minimum patched ORDS release, and administrators should upgrade to that build or later rather than relying on an inferred version number. Where patching must wait, restrict network reachability of the ORDS GraphQL endpoint to trusted clients with a reverse proxy ACL or WAF rule and require authentication ahead of it - the trade-off is broken access for legitimate GraphQL consumers - or disable/unmap the GraphQL component entirely if it is unused, which removes the attack surface at the cost of losing GraphQL functionality. Also review database privileges of the ORDS connection pool schemas, since limiting what the mapped schema can read reduces the data reachable through the flaw; monitor GraphQL request logs for anonymous queries from unexpected sources. No vendor-released workaround beyond patching or disabling the component is documented in the supplied references.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
Oracle REST Data Services (ORDS) is a Java-based mid-tier that publishes Oracle Database schemas and PL/SQL as RESTful and GraphQL endpoints, typically fronted by Tomcat/WebLogic or Jetty. This issue sits in the GraphQL handler (tagged an authentication bypass), the layer that resolves GraphQL queries against ORDS-mapped resources. The root cause class maps to improper access control of a resource (CWE-639/CWE-863 family) rather than a memory-safety bug: the GraphQL resolution path fails to enforce the same authorization checks applied to the equivalent REST endpoints, so schema operations reachable only by authorized callers can be queried anonymously. Because the CVSS vector is PR:N/UI:N with scope unchanged and only C:L, an attacker needs a network path to the GraphQL endpoint of an affected deployment but gains nothing beyond read access to whatever data that endpoint can reach - no privilege escalation, integrity change, or availability impact.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Unauthenticated network HTTP access with low complexity (PR:N/AV:N/AC:L) yielding only partial confidentiality loss to a data subset, no integrity or availability impact.
Primary rating from NVD.
CVSS VectorNVD
DescriptionNVD
Vulnerability in Oracle REST Data Services (component: Graph QL). 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
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.
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EUVD-2026-105779
GHSA-9vf2-c3c3-gqfm
NVD
CVE.org
EPSS
Exploit-DB