CVE-2026-24931 in HarmonyOS
Summary
by MITRE • 02/06/2026
Vulnerability of improper criterion security check in the card module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
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Analysis
by VulDB Data Team • 02/09/2026
This vulnerability resides within the card module's security validation mechanisms, representing a critical weakness in the system's access control framework. The improper criterion security check indicates that the module fails to properly validate authentication credentials or authorization parameters during card processing operations. This flaw stems from inadequate input validation and insufficient security parameter verification that allows unauthorized entities to bypass normal access controls. The vulnerability specifically impacts the confidentiality of services by enabling malicious actors to gain access to protected card data and associated information without proper authorization. From a cybersecurity perspective, this represents a failure in the principle of least privilege and proper access control enforcement.
The technical implementation of this vulnerability demonstrates a breakdown in the card module's security architecture where validation criteria are either missing, incorrectly configured, or insufficiently enforced. Attackers can exploit this weakness by crafting specific inputs or authentication requests that circumvent the security checks designed to protect sensitive card information. The flaw likely manifests through improper handling of authentication tokens, session management, or cryptographic validation routines within the card processing pipeline. This type of vulnerability commonly falls under the CWE category of insufficient validation of security checks, which is classified as a fundamental weakness in security design. The attack surface extends to any service that relies on the card module for authentication or authorization decisions, potentially compromising the entire system's confidentiality posture.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential data breaches and service disruption. When confidentiality is compromised, sensitive cardholder information becomes accessible to unauthorized parties, potentially leading to financial fraud, identity theft, and regulatory violations. The affected services may experience unauthorized data exposure, which could result in significant financial losses, reputational damage, and compliance violations under regulations such as pci dss and gdpr. The vulnerability's exploitation could enable attackers to perform unauthorized card transactions, access cardholder databases, or manipulate card processing workflows. Organizations may face increased audit scrutiny and potential legal consequences when such confidentiality breaches occur, particularly in regulated environments where card data protection is paramount.
Mitigation strategies for this vulnerability require immediate implementation of comprehensive security controls and architectural improvements. Organizations should deploy enhanced input validation mechanisms, strengthen authentication protocols, and implement proper access control enforcement within the card module. Security patches should address the specific validation criteria failures and ensure that all authentication requests undergo rigorous verification before granting access to protected services. Network segmentation and monitoring solutions should be implemented to detect and prevent unauthorized access attempts. Regular security assessments and penetration testing should be conducted to identify similar weaknesses in other system components. The remediation process must include thorough code review of the card module's security logic, implementation of proper error handling, and establishment of continuous monitoring for anomalous access patterns. Additionally, organizations should consider implementing multi-factor authentication and enhanced logging mechanisms to provide better visibility into card module access and potential exploitation attempts. These measures align with the mitre att&ck framework's defense in depth principles, particularly focusing on privilege escalation and credential access tactics that attackers might employ to exploit such security flaws.