CVE-2026-87364

Low‑privileged HTTP Compromise of Oracle Service Bus

Published Oct 20, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Service Bus. Successful attacks of this vulnerability can result in takeover of Oracle Service Bus. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Low‑privileged HTTP Compromise of Oracle Service Bus
Weaknesses CWE-269
CWE-284
Type Values Removed Values Added
Description Vulnerability in the Oracle Service Bus product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Service Bus. Successful attacks of this vulnerability can result in takeover of Oracle Service Bus. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
First Time appeared Oracle
Oracle service Bus
CPEs cpe:2.3:a:oracle:service_bus:12.2.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:service_bus:14.1.2.0.0:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle service Bus
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
oracle
Published
Updated
Oct 28, 2026, 2:45 PM
Reserved
Sep 8, 2026, 9:49 PM
Status
Analyzed
Published
Oct 20, 2026, 10:20 PM
Modified
Nov 5, 2026, 7:38 PM