CVE-2026-89103
Received Received - Intake

SAP Gateway Default ACL Privilege Escalation

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: SAP SE

Description
SAP Gateway activates the default Access Control List with high privileges allowing categorization of external attacker as internal application server. As a result an unauthenticated attacker with network access to the SAP Gateway could exploit this weakness to potentially perform unauthorized actions within the application environment, resulting in a high impact on the confidentiality, integrity, and availability of the affected system.

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Meta Information

Published
2026-11-10
Last Modified
2026-11-10
Generated
2026-11-10
AI Q&A
2026-11-10
EPSS Evaluated
N/A
NVD
CVE-2026-89103
EUVD
EUVD-2026-120662

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
sap sap_gateway *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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Executive Summary

This vulnerability in SAP Gateway allows an unauthenticated attacker with network access to exploit a default Access Control List with high privileges. The attacker could be categorized as an internal application server, enabling unauthorized actions within the application environment.

Detection Guidance

To detect this vulnerability, check if SAP Gateway is configured with default Access Control Lists that grant high privileges. Inspect network traffic for unauthorized access attempts to SAP Gateway ports (typically 3300, 3900, or 8000). Use SAP tools like transaction SMGW to review ACL configurations and monitor for unusual application server connections.

Impact Analysis

An attacker could perform unauthorized actions, leading to high impact on the confidentiality, integrity, and availability of the affected SAP system. This may result in data breaches, system disruptions, or unauthorized modifications.

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, violating compliance requirements for GDPR and HIPAA. Organizations may face legal penalties, reputational damage, and loss of trust due to non-compliance.

Mitigation Strategies

Apply SAP Security Note 3798345 immediately to disable the default high-privilege Access Control List in SAP Gateway. Restrict network access to SAP Gateway ports and review ACL configurations to ensure least privilege.

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