CVE-2026-11889 in ProAccess Space
Summary
by MITRE • 07/17/2026
SALTO ProAccess Space software using the tenancy feature / logical partition is vulnerable to a privilege escalation attack that could allow an authorized attacker to access any space managed by the affected product.
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Analysis
by VulDB Data Team • 07/17/2026
The SALTO ProAccess Space software implements a tenancy feature or logical partitioning mechanism to manage multiple spaces or environments within a single system instance. This architectural approach allows organizations to isolate different operational domains while sharing underlying infrastructure resources. The vulnerability resides in how the system handles authorization checks and access controls when transitioning between these logical partitions. An attacker with legitimate access to the system can exploit a flaw in the privilege escalation mechanism that bypasses normal access control boundaries.
This vulnerability represents a critical security weakness that directly impacts the principle of least privilege and mandatory access controls. The flaw allows an authorized user to escalate their privileges beyond their designated scope, potentially gaining access to spaces they should not be permitted to access according to the system's security policies. The attack vector likely involves manipulating session tokens, access control lists, or authentication contexts that govern space boundaries within the tenancy model.
The operational impact of this vulnerability is severe as it undermines the fundamental security architecture of the ProAccess Space system. An attacker could potentially access sensitive data, modify configurations, or perform administrative actions across multiple spaces without proper authorization. This compromises the integrity and confidentiality of all tenant environments managed by the affected software, creating a potential breach that could affect multiple organizations sharing the same platform instance. The vulnerability also impacts auditability since unauthorized access activities may not be properly logged or detected.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-284 (Improper Access Control) and maps to ATT&CK technique T1078 (Valid Accounts) and T1548.1 (Abuse Elevation Control Mechanism). Organizations should implement immediate mitigations including strengthening access control enforcement mechanisms, implementing proper session management controls, and conducting comprehensive access reviews. Additional protective measures include deploying network segmentation, enabling enhanced logging and monitoring for privilege escalation attempts, and ensuring regular security assessments of the tenancy implementation. The vulnerability also highlights the need for robust input validation and proper boundary checking in multi-tenant environments to prevent unauthorized cross-tenant access scenarios.