CVE-2026-14973 in Aspera Desktop App
Summary
by MITRE • 07/29/2026
IBM Aspera Desktop App 1.0.5 through 1.0.19 IBM Aspera for desktop can allow files to be written outside of the user's selected download destination.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 07/29/2026
The vulnerability in IBM Aspera Desktop App versions 1.0.5 through 1.0.19 represents a critical path traversal flaw that enables unauthorized file system access and potential arbitrary file writing operations. This issue stems from inadequate input validation and sanitization within the application's file handling mechanisms, allowing malicious actors to bypass intended download restrictions and write files to arbitrary locations on the target system. The vulnerability is classified under CWE-22 as Path Traversal, specifically manifesting as a directory traversal attack that can be exploited through improper handling of file paths during download operations.
The technical implementation of this flaw occurs when the application processes file names or paths received from remote sources without proper validation of directory separators or special characters. Attackers can manipulate download requests to include sequences such as "../" or similar path traversal patterns that cause the application to write files outside the designated download folder. This vulnerability directly impacts the principle of least privilege by allowing the application to perform file system operations beyond its intended scope, potentially leading to persistent malware installation, credential theft, or system compromise.
The operational impact of this vulnerability extends beyond simple unauthorized file creation, as it can enable attackers to overwrite critical system files, install backdoors, or establish persistence mechanisms within the target environment. The attack surface is particularly concerning given that Aspera Desktop App is designed for secure file transfer operations, making any compromise of its integrity a significant threat to enterprise security. Adversaries could leverage this vulnerability in conjunction with other attack vectors to escalate privileges and move laterally within networks, aligning with ATT&CK technique T1059 for command and control through compromised file systems.
Mitigation strategies should focus on immediate patching of affected versions to address the root cause of path traversal vulnerabilities. Organizations must implement strict input validation mechanisms that sanitize all file paths and reject any attempts to traverse directories outside the intended download scope. Network segmentation and application whitelisting can provide additional defense layers, while monitoring for unusual file system activity in download directories should be implemented. The vulnerability demonstrates the importance of secure coding practices and proper input validation as outlined in industry standards such as OWASP Top Ten and NIST Cybersecurity Framework, emphasizing that file system security controls must be robust enough to prevent privilege escalation through seemingly benign application features. Regular security assessments and penetration testing should verify that similar path traversal vulnerabilities do not exist in related components or integrated systems that may provide alternative attack vectors for exploitation.