CVE-2026-59909 in ObjectScale
Summary
by MITRE • 08/17/2026
Dell ObjectScale, versions prior to 4.3.0.1, contain(s) a Path Traversal vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information tampering.
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Analysis
by VulDB Data Team • 08/17/2026
The identified security flaw resides within Dell EMC ObjectScale software for versions preceding the release of 4.3.0.1 and is classified as a path traversal vulnerability. This type of defect typically arises when an application processes user-supplied input that includes file or directory paths without adequately sanitizing special characters such as dot-dot-slash sequences. In this specific instance, the underlying code fails to properly validate these inputs before using them in filesystem operations. Consequently, an attacker who has gained local access to the system can manipulate the intended path structure to reference files and directories outside of the expected application sandbox or root directory. This lack of strict input validation allows for unauthorized navigation through the operating system's file hierarchy, bypassing standard security boundaries that are designed to isolate application data from sensitive system resources.
From a technical perspective, this vulnerability aligns with Common Weakness Enumeration identifier CWE-22, which defines Improper Limitation of a Pathname to a Restricted Directory. The core issue is not necessarily in the authentication mechanism but rather in the authorization and input handling logic that governs file access operations. When an attacker provides crafted path strings containing relative navigation sequences, the application interprets these literally without stripping or resolving them against the allowed base directory. This behavior enables the reading of arbitrary files if read permissions are granted by the underlying operating system user context running the ObjectScale service. More critically for this specific report, it facilitates information tampering because an attacker with write access to the affected directories can overwrite critical configuration files, application binaries, or data stores located outside the intended scope. This capability undermines the integrity of the storage management platform and potentially allows for further privilege escalation if sensitive system files are modified in a way that alters security policies or service behaviors.
The operational impact of this vulnerability is significant due to its potential to compromise both confidentiality and integrity within the Dell EMC ObjectScale environment. Although exploitation requires local access, which implies an initial foothold on the host machine, it represents a critical escalation path for attackers who have already breached perimeter defenses through other means such as phishing or exploiting remote services with weaker controls. Once inside, the ability to traverse paths allows the attacker to target sensitive configuration files that control cluster behavior, authentication settings, and data replication policies. Tampering with these files can lead to service disruption, unauthorized access to stored objects, or complete compromise of the storage infrastructure's integrity. For organizations relying on ObjectScale for critical data protection and management, this vulnerability introduces a risk where internal threats or compromised low-privilege accounts can destabilize the entire storage ecosystem without requiring direct remote exploitation capabilities.
To mitigate this risk, it is imperative to apply the vendor-recommended patch immediately by upgrading Dell EMC ObjectScale to version 4.3.0.1 or any later release that addresses this specific path traversal defect. The update includes code changes that enforce strict validation of file paths and ensure that all user-supplied inputs are resolved against a restricted base directory before being passed to the operating system's filesystem APIs. In addition to patching, organizations should implement defense-in-depth strategies such as running application services with minimal necessary privileges using principle of least privilege models. This limits the potential damage even if path traversal is attempted by restricting write access to only essential directories and ensuring that sensitive configuration files are not world-writable or group-writable by untrusted users. Furthermore, monitoring file system integrity through tools like AIDE or OSSEC can help detect unauthorized modifications resulting from such exploitation attempts. Aligning with MITRE ATT&CK techniques, this vulnerability relates primarily to T1083 File and Directory Discovery and potentially T1562 Impair Defenses if used to disable logging or security controls via file tampering. Regular audits of application code for input validation practices and continuous monitoring of system logs are essential components of a robust security posture against such internal threats.