CVE-2026-24924 in HarmonyOS
Summary
by MITRE • 02/06/2026
Vulnerability of improper permission control in the print module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
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Analysis
by VulDB Data Team • 03/05/2026
This vulnerability represents a critical weakness in the print module's permission control mechanisms, classified under the broader category of improper access control issues. The flaw resides in how the system handles authorization checks when processing print requests, potentially allowing unauthorized users to access sensitive print jobs or system resources. Such vulnerabilities typically arise from insufficient validation of user credentials or roles before granting access to print functionalities, creating opportunities for privilege escalation or information disclosure.
The technical implementation of this vulnerability stems from inadequate input validation and access control enforcement within the print subsystem. When users submit print requests, the system should verify their permissions against predefined access control lists or role-based security policies before processing the job. However, in this case, the permission checking mechanism fails to properly validate user credentials or may bypass essential authorization checks entirely. This weakness can manifest as missing permission boundaries, flawed authentication flows, or insufficient session management during print operations.
The operational impact of this vulnerability extends beyond simple confidentiality concerns, as it can compromise the integrity and availability of print services within affected systems. An attacker exploiting this flaw could potentially access confidential documents queued for printing, intercept sensitive information, or even manipulate print job parameters to redirect output to unauthorized destinations. The implications are particularly severe in enterprise environments where print services handle sensitive corporate data, personal information, or classified documents. Additionally, the vulnerability may enable attackers to consume excessive print resources, potentially leading to denial of service conditions or unauthorized printing of copyrighted materials.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-285, which addresses improper authorization issues in software systems. The flaw also corresponds to ATT&CK technique T1078.004, which covers valid accounts with modified permissions, as attackers may leverage legitimate print service accounts to gain unauthorized access. Organizations should implement comprehensive mitigation strategies including regular access control audits, proper input sanitization, and robust permission validation mechanisms. Security controls should focus on enforcing principle of least privilege, implementing multi-factor authentication for print services, and establishing monitoring protocols to detect unauthorized access attempts. The vulnerability underscores the importance of secure coding practices and thorough security testing of all system components, particularly those handling user requests and system resources.