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CVE-2026-83266: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle JDeveloper. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle JDeveloper accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle JDeveloper. in Oracle Corporation Oracle JDeveloper

0
High
VulnerabilityCVE-2026-83266cvecve-2026-83266
Published: 09/15/2026 (09/15/2026, 20:04:40 UTC)
Source: CVE Database V5
Vendor/Project: Oracle Corporation
Product: Oracle JDeveloper

Description

CVE-2026-83266 is a high-severity vulnerability in Oracle JDeveloper versions 12.2.1.4.0 and 14.1.2.0.0. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized access to critical data or all data accessible by Oracle JDeveloper. Additionally, the attacker can cause a partial denial of service (DoS) of the Oracle JDeveloper service. The vulnerability has a CVSS 3.1 base score of 8.2, indicating high impact on confidentiality and availability.

CVSS v3.1

Score 8.2high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

Affected software

Oracle Corporation

Oracle JDeveloper

Affected versions
=12.2.1.4.0=14.1.2.0.0

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/15/2026, 22:57:19 UTC

Technical Analysis

This vulnerability affects the Resource Catalog Services component of Oracle JDeveloper in Oracle Fusion Middleware. It is easily exploitable by unauthenticated attackers over the network via HTTP. Successful exploitation can lead to unauthorized access to sensitive data and partial denial of service conditions. The CVSS vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L) indicates network attack vector, low attack complexity, no privileges or user interaction required, with high confidentiality impact and low availability impact. Oracle has included this vulnerability in its September 2026 Critical Security Patch Update, which provides targeted security patches for affected products including Oracle JDeveloper.

Potential Impact

An unauthenticated attacker can remotely exploit this vulnerability to gain unauthorized access to critical or all accessible data within Oracle JDeveloper. The attacker can also cause a partial denial of service, impacting availability of the Oracle JDeveloper service. There is no integrity impact reported. This could lead to data exposure and service disruption for affected Oracle JDeveloper deployments.

Mitigation Recommendations

Oracle has released security patches addressing this vulnerability as part of the September 2026 Critical Security Patch Update. Users of Oracle JDeveloper versions 12.2.1.4.0 and 14.1.2.0.0 should apply the relevant patches promptly to remediate this vulnerability. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay to prevent exploitation. Patch status is confirmed by the vendor advisory.

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Technical Details

Data Version
5.2
Assigner Short Name
oracle
Date Reserved
2026-08-31T15:40:57.350Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","vendor":"Oracle"}]

Threat ID: 6aa9a83755bf5e2cf5538125

Added to database: 09/15/2026, 20:19:03 UTC

Last enriched: 09/15/2026, 22:57:19 UTC

Last updated: 09/15/2026, 22:57:19 UTC

Views: 2

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