CVE-2026-0503 in ERP Central Component and S4HANA
Summary
by MITRE • 01/13/2026
Due to missing authorization check in the SAP ERP Central Component (SAP ECC) and SAP S/4HANA (SAP EHS Management), an attacker could extract hardcoded clear-text credentials and bypass the password authentication check by manipulating user parameters. Upon successful exploitation, the attacker can access, modify or delete certain change pointer information within EHS objects in the application which might further affect the subsequent systems. This vulnerability leads to a low impact on confidentiality and integrity of the application with no affect on the availability.
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Analysis
by VulDB Data Team • 01/13/2026
The vulnerability identified as CVE-2026-0503 represents a critical authorization bypass flaw within SAP ERP Central Component and SAP S/4HANA EHS Management modules. This weakness stems from insufficient validation of user permissions during authentication processes, allowing malicious actors to manipulate parameter values and gain unauthorized access to sensitive system resources. The vulnerability specifically targets the EHS (Environmental Health and Safety) objects within these enterprise applications, where change pointer information can be accessed, modified, or deleted without proper authorization. The flaw exists in the authentication mechanism that should verify user credentials before granting access to protected resources, creating a pathway for attackers to bypass standard password verification procedures through parameter manipulation techniques.
The technical implementation of this vulnerability involves the exploitation of hardcoded clear-text credentials that are improperly protected within the application's codebase. These credentials, when exposed through the authorization bypass, enable attackers to authenticate as legitimate users and access EHS management functionalities. The manipulation of user parameters allows threat actors to escalate their privileges and navigate through the application's security controls without proper authentication checks. This type of vulnerability falls under CWE-285, which addresses improper authorization within software systems, and aligns with ATT&CK technique T1078.101 which covers valid accounts used for unauthorized access. The attack vector leverages parameter tampering to manipulate the application's authentication flow, effectively rendering access controls ineffective.
The operational impact of CVE-2026-0503 extends beyond immediate unauthorized access to EHS objects, potentially creating cascading effects throughout the enterprise's environmental health and safety management systems. Attackers who successfully exploit this vulnerability can modify or delete change pointer information that tracks modifications to safety-related data, potentially compromising regulatory compliance and audit trails. The low impact on confidentiality and integrity indicates that while the vulnerability allows for unauthorized modifications to system data, it does not provide direct access to sensitive information or enable complete system compromise. However, the ability to manipulate EHS object change pointers could affect downstream systems that rely on accurate safety data for operational decisions, creating indirect but significant business impacts. The vulnerability affects the integrity of safety management processes and could potentially lead to compliance violations in regulated environments.
Organizations must implement immediate mitigations to address this vulnerability through proper parameter validation and authentication enforcement mechanisms. The recommended approach includes implementing robust input sanitization to prevent parameter manipulation, enforcing strict authorization checks before granting access to EHS management functions, and conducting thorough code reviews to identify hardcoded credentials. System administrators should also implement monitoring solutions to detect anomalous parameter usage patterns and unauthorized access attempts. The mitigation strategy should incorporate principle of least privilege enforcement and regular credential rotation to minimize the potential impact of exposed credentials. Additionally, organizations should review their SAP system configurations to ensure proper access controls are in place for EHS management modules, as outlined in SAP security best practices and the CWE-285 remediation guidelines. Regular security assessments and penetration testing should be conducted to identify similar authorization bypass vulnerabilities within the enterprise application landscape.