CVE-2026-58555 in HarmonyOS
Summary
by MITRE • 07/15/2026
Permission bypass vulnerability in the card module. Impact: Successful exploitation of this vulnerability may affect availability.
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Analysis
by VulDB Data Team • 07/15/2026
A permission bypass vulnerability within the card module represents a critical security flaw that undermines the integrity and confidentiality of access controls governing sensitive data processing operations. This type of vulnerability typically arises when the system fails to properly validate user permissions or authentication states before granting access to protected resources, allowing unauthorized entities to bypass established security boundaries. The vulnerability's classification aligns with CWE-285, which addresses improper authorization scenarios where systems fail to verify that subjects have adequate access rights for requested operations. Such flaws often manifest through insufficient input validation, weak session management, or inadequate privilege checks within the authentication and authorization frameworks.
The technical implementation of this permission bypass vulnerability likely involves exploiting design flaws in how the card module validates user credentials or evaluates access privileges during transaction processing. Attackers may leverage this weakness to perform unauthorized operations such as viewing restricted data, modifying sensitive records, or executing privileged functions without proper authorization. The impact extends beyond simple data exposure to potentially compromise system availability through resource exhaustion attacks or by enabling malicious actors to disrupt normal operational procedures. According to ATT&CK framework, this vulnerability maps to technique T1078 which covers valid accounts and privilege escalation through unauthorized access to protected resources.
The operational consequences of successful exploitation can be severe and multifaceted, affecting both the confidentiality and availability aspects of the targeted system. Organizations may experience unauthorized data access leading to potential regulatory violations, financial losses, and reputational damage when sensitive cardholder information or transaction records are compromised. The availability impact occurs when attackers leverage this vulnerability to disrupt normal processing operations, potentially causing denial-of-service conditions or system instability through resource manipulation. Security controls such as role-based access control implementations, mandatory access controls, and proper authorization checking mechanisms become ineffective against this class of attack.
Mitigation strategies should focus on implementing comprehensive access control validation mechanisms throughout the card module's operational lifecycle. Organizations must ensure that all authentication checks occur before any sensitive operations are executed, with proper session management protocols in place to prevent unauthorized access attempts. Regular security testing including penetration testing and vulnerability scanning should be conducted to identify potential permission bypass scenarios. Additionally, implementing defense-in-depth strategies such as multi-factor authentication, continuous monitoring of access patterns, and regular security audits will help detect anomalous behavior that might indicate exploitation attempts. The remediation process requires careful code review to ensure proper validation of user permissions at every interaction point within the card module, along with implementing proper logging and alerting mechanisms to detect unauthorized access attempts.