Description
Vulnerability in the Workflow product of Oracle E-Business Suite (component: Workflow Notification Mailer). Supported versions that are affected are 12.2.3-12.2.15. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Workflow. Successful attacks of this vulnerability can result in takeover of Workflow. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
Published: 2026-10-20
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote System Takeover
Action: Patch Immediately
AI Analysis

Impact

This vulnerability in the Oracle E‑Business Suite Workflow Notification Mailer component allows an unauthenticated attacker with network access over HTTP to compromise the entire Workflow system. The weakness is an authentication bypass (CWE‑306) that gives the attacker the ability to execute arbitrary actions, resulting in full takeover and impacting confidentiality, integrity and availability.

Affected Systems

Oracle Corporation’s Workflow product, part of the E‑Business Suite, is affected for versions 12.2.3 through 12.2.15. The flaw resides in the Workflow Notification Mailer and applies only when the component is reachable over HTTP from the public or external network.

Risk and Exploitability

The CVSS base score of 8.1 indicates a high severity, and the EPSS score of < 1% shows a low current exploitation likelihood. The vulnerability is not yet listed in CISA KEV, suggesting no widespread public exploit. However, because the flaw permits unauthenticated access over network traffic, attackers could easily target exposed HTTP endpoints and gain full control of Workflow processes if the exploit is applied. The high impact combined with the ability to authenticate through the network makes this a critical risk for exposed systems.

Generated by OpenCVE AI on October 27, 2026 at 10:08 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the Oracle CPU October 2026 patch for Workflow 12.2.3‑12.2.15 to remove the authentication bypass flaw
  • Restrict or block external HTTP access to the Workflow Notification Mailer using firewall rules or network segmentation
  • If a patch cannot be applied immediately, disable the Workflow Notification Mailer service or enforce authentication to limit network exposure

Generated by OpenCVE AI on October 27, 2026 at 10:08 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 27 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Access Enables Full Oracle Workflow Takeover

Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Access Allows Workflow Takeover in Oracle E-Business Suite
Weaknesses CWE-287

Mon, 26 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-306
Metrics ssvc

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


Wed, 21 Oct 2026 11:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Access Allows Workflow Takeover in Oracle E-Business Suite
Weaknesses CWE-287

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in the Workflow product of Oracle E-Business Suite (component: Workflow Notification Mailer). Supported versions that are affected are 12.2.3-12.2.15. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Workflow. Successful attacks of this vulnerability can result in takeover of Workflow. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
First Time appeared Oracle
Oracle workflow
CPEs cpe:2.3:a:oracle:workflow:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle workflow
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-27T03:56:07.003Z

Reserved: 2026-09-14T22:10:16.639Z

Link: CVE-2026-91506

cve-icon Vulnrichment

Updated: 2026-10-26T19:42:41.017Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-20T22:20:55.110

Modified: 2026-11-10T17:40:08.847

Link: CVE-2026-91506

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T10:15:18Z

Weaknesses
  • CWE-306

    Missing Authentication for Critical Function