Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain low-privileged local logon on GoldenGate host
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ExploitExploit Vendor Access Module flaw
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ImpactRead critical GoldenGate-accessible data
Vulnerability Assessment
| Exploitation Conditions | Exploitation requires the attacker to already possess a valid low-privileged logon (PR:L) on the infrastructure host where Oracle GoldenGate 21.3 through 21.23 executes, and to reach the Vendor Access Module component locally (AV:L). There is no remote network vector and no user-interaction requirement, but the pre-existing local account and privilege requirement is the primary limiting factor: a purely external, unauthenticated attacker cannot exploit this. Impact is limited to disclosure of GoldenGate-accessible data (C:H); integrity and availability are unaffected. Only supported versions 21.3-21.23 are affected. |
| Impact | This is a moderate-severity, local-access confidentiality issue, not an urgent priority. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, base 5.5) tells a consistent story: an attacker must already have local logon access to the host running Oracle GoldenGate (AV:L) and must hold at least low-level privileges (PR:L), after which they can read critical GoldenGate-accessible data (C:H) with no integrity or availability impact. This is a privilege-escalation-style information disclosure confined to an already-authenticated local user, which substantially caps real-world risk. No EPSS score, CISA KEV listing, POC, or SSVC decision data was provided; absent those signals there is no evidence of active or imminent exploitation - this reflects the typical profile of an Oracle quarterly Critical Patch Update finding reported internally by Oracle rather than a widely-weaponized flaw. One signal conflict to flag: the input Tags include 'Authentication Bypass,' which contradicts the CVSS vector - a flaw requiring PR:L (pre-existing credentials) and yielding only confidentiality impact is a local information-disclosure issue, not an authentication bypass; this tag appears mislabeled and should not drive triage. |
| Exploit ScenarioDerived | An attacker who already has a low-privileged local account (or has compromised one) on the server where Oracle GoldenGate runs leverages a flaw in the Vendor Access Module to read data that GoldenGate can access, including sensitive replicated data. No user interaction or additional authentication beyond the existing local logon is required. No public exploit code was identified at the time of analysis, so exploitation would require custom development. |
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Alert meAnalysisAIv1 – Oct 21, 2026
Oracle GoldenGate 21.3 through 21.23 can expose sensitive GoldenGate-accessible data to a low-privileged local user through the Vendor Access Module. The issue is locally exploitable by an attacker who already has a valid logon on the GoldenGate host (CVSS 5.5, AV:L/PR:L), with high confidentiality impact but no integrity or availability effect. No public exploit or CISA KEV entry is identified in the provided data, and exploitation requires local access rather than a remote unauthenticated path.
RemediationAI
Apply the Oracle GoldenGate fix referenced in Oracle's October 2026 Critical Patch Update advisory at https://www.oracle.com/security-alerts/cpuoct2026.html; the provided data does not specify an exact fixed build, so confirm the patched GoldenGate release in the vendor advisory before upgrading. Until patching, restrict local logon access to GoldenGate infrastructure to trusted administrators, review and minimize low-privileged OS accounts that can reach the Vendor Access Module, and audit access to GoldenGate-accessible data for anomalous reads. Because the assessed vector is local (AV:L) and requires a valid low-privileged account (PR:L), reducing the population of local users and enforcing least privilege on GoldenGate hosts are the most direct compensating controls; restricting accounts may affect legitimate operational access, and auditing may add overhead. Network isolation or blocking remote ports does not address this local attack path. If the Vendor Access Module can be disabled without breaking supported replication or vendor integrations, consider that as a temporary exposure reduction, but validate the operational impact first because it may disrupt vendor-supported workflows.
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 GoldenGate is a real-time data replication and integration platform used to move transactional data between heterogeneous systems. The affected component is the Vendor Access Module, and supported versions 21.3 through 21.23 are in scope. No CWE identifier or CPE strings were included in the supplied data, so the root-cause class cannot be confirmed from a CWE mapping; the supplied 'Authentication Bypass' tag should not be read as an unauthenticated remote bypass, because the assessed CVSS vector is AV:L/PR:L/UI:N/S:U/C:H/I:N/A:N, meaning the attacker must already hold a low-privileged local account on the GoldenGate host. The confidentiality-only impact indicates the weakness lets that local user reach data that should not be accessible to their privilege level, without affecting integrity or availability.
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Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Requires existing local logon with low privilege so AV:L and PR:L; straightforward to trigger (AC:L), no UI, and only confidentiality is impacted (C:H, I/A:N).
Primary rating from NVD.
CVSS VectorNVD
DescriptionNVD
Vulnerability in Oracle GoldenGate (component: Vendor Access Module). Supported versions that are affected are 21.3-21.23. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle GoldenGate executes to compromise Oracle GoldenGate. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle GoldenGate accessible data. CVSS 3.1 Base Score 5.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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.
EUVD-2026-106009
GHSA-gcg5-f5x5-9435
NVD
CVE.org
EPSS
Exploit-DB