Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessIdentify internet-facing Oracle HTTP Server
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DeliverySend crafted HTTP request to mod_proxy
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ExploitBypass proxy trust boundary (scope change)
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ExecutionReach protected back-end resource
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ImpactExfiltrate critical confidential data
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK
2 techniques across 2 tactics: Collection, Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation targets the mod_proxy component of Oracle HTTP Server, so the OHS instance must have proxy functionality in use (reverse or forward proxying to back-end/origin systems) and be reachable over HTTP by the attacker - that is the concrete prerequisite drawn from the component and description. Per the CVSS vector (AV:N/AC:L/PR:N/UI:N) no authentication, user interaction, or special client privilege is required against affected versions 12.2.1.4.0 and 14.1.2.0.0. Limiting factors that reduce real-world exposure: only these two OHS releases are listed, the impact is confidentiality-only (no data modification or service disruption), and the value of the attack depends on there being sensitive back-end resources behind the proxy for the scope-change to expose; OHS instances not performing proxying or not network-exposed are far lower risk. |
| Impact | Signals are moderately concerning but not emergency-tier. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N, base 8.6) means network-reachable, low-complexity, unauthenticated exploitation with no user interaction and cross-boundary confidentiality loss - an attractive, easily-automatable target. Offsetting this: impact is confidentiality-only (no integrity or availability), there is no integrity/RCE consequence, it is not in CISA KEV, no public POC has been identified, and no EPSS score was supplied in the input, so real-world exploitation probability cannot be quantified. No SSVC decision data was provided. The 'Authentication Bypass' tag and the description's 'unauthorized access to critical data' are directionally consistent with the confidentiality-heavy vector, so signals do not conflict; the main uncertainty is the absent CWE and EPSS, which prevents precise weaponization forecasting. Net: a genuine high-priority patch for internet- or partner-facing OHS instances, but data-exposure rather than takeover. |
| Exploit ScenarioDerived | An attacker with only network HTTP access to an internet- or partner-facing Oracle HTTP Server sends a crafted request that abuses the mod_proxy routing/forwarding logic to reach a back-end or internal resource it should not, returning confidential data from that other system without any credentials. Because AC:L/PR:N/UI:N makes the attack low-complexity and unauthenticated, it is readily scriptable against exposed OHS endpoints; no public POC is currently identified, so exploitation would require the attacker to independently develop the request. |
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Alert meAnalysisAIv1 – Jul 22, 2026
Unauthorized data disclosure in Oracle HTTP Server 12.2.1.4.0 and 14.1.2.0.0 (Oracle Fusion Middleware, mod_proxy component) lets an unauthenticated remote attacker over HTTP read critical data and, because of a scope change, reach data belonging to other back-end products the proxy fronts. The confidentiality-only impact combined with S:C strongly indicates a proxy-side request-forwarding/SSRF-class weakness that exposes internal resources rather than a code-execution flaw. Addressed in the Oracle Critical Patch Update of July 2026; no public exploit identified at time of analysis and it is not listed in CISA KEV.
RemediationAI
Apply the fixes delivered in the Oracle Critical Patch Update of July 2026 (Patch available per vendor advisory: https://www.oracle.com/security-alerts/cpujul2026.html) to both affected releases (12.2.1.4.0 and 14.1.2.0.0); Oracle CPUs bundle the specific patch numbers per product, so consult that advisory for the exact OHS patch IDs since no discrete fix version string was provided in the input. As compensating controls until patching, restrict and validate mod_proxy configuration by removing or tightly scoping ProxyPass/ProxyPassReverse and any forward-proxy (ProxyRequests) directives, deny proxying to internal or metadata address ranges, and place a WAF or reverse-proxy allowlist in front of OHS to constrain which back-end hosts and URL paths can be reached - with the trade-off that over-restrictive proxy rules can break legitimate application routing to WebLogic/back-end tiers, so stage changes in test first. Also front internet-facing OHS with network ACLs limiting inbound HTTP to trusted sources where feasible.
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 HTTP Server (OHS) is Oracle's Apache-derived web tier for Fusion Middleware, and the affected component mod_proxy is the reverse/forward proxy module that relays client requests to back-end origin servers (WebLogic, application servers, internal services). The CVSS scope change (S:C) coupled with high confidentiality but no integrity or availability impact is the classic signature of a proxy that can be coerced into fetching or exposing resources beyond its intended trust boundary - i.e. server-side request forgery or request-routing bypass, the reason 'attacks may significantly impact additional products.' No CWE was assigned by NVD/Oracle, so the exact weakness class is inferred from the vector and the mod_proxy component rather than confirmed; the vendor tag 'Authentication Bypass' suggests the proxy layer can be induced to serve or route to data that should require authentication.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Network-reachable, low-complexity, unauthenticated proxy abuse with cross-boundary data exposure justifies AV:N/AC:L/PR:N and S:C/C:H; no integrity or availability impact.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.org
Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: mod_proxy). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server. While the vulnerability is in Oracle HTTP Server, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle HTTP Server accessible data. CVSS 3.1 Base Score 8.6 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N).
Executive ViewAI
Oracle HTTP Server, a core proxy component in Oracle Fusion Middleware used by enterprises for mission-critical business applications, contains a vulnerability allowing unauthenticated remote attackers to read sensitive business data and access information from back-end systems behind the proxy. Organizations using Oracle Fusion face immediate risk of data breach and regulatory exposure. Urgent inventory and mitigation steps are required to prevent unauthorized information disclosure.
No vendor-released patch identified at time of analysis. Interim mitigations include: implement WAF rules to detect proxy-scope bypass and multi-backend resource access attempts; enforce strict network segmentation between HTTP Server and back-end systems; enable comprehensive logging and alerting on all proxy traffic with anomaly detection; restrict direct HTTP Server access to authorized administrators only; disable or restrict the mod_proxy module if not operationally required; and conduct network architecture review to minimize sensitive back-end system exposure through the proxy layer.
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.
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
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EUVD-2026-46829
GHSA-mr3v-jwh6-mmp4
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB