CVE-2026-32415 in Squeeze Plugin
Summary
by MITRE • 03/13/2026
Path Traversal: '.../...//' vulnerability in Bogdan Bendziukov Squeeze squeeze allows Path Traversal.This issue affects Squeeze: from n/a through <= 1.7.7.
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Analysis
by VulDB Data Team • 03/20/2026
The vulnerability CVE-2026-32415 represents a critical path traversal flaw in the Squeeze compression utility developed by Bogdan Bendziukov. This security weakness allows attackers to manipulate file paths through specially crafted input sequences, specifically leveraging the pattern '..././/'. The vulnerability exists within the software's handling of file paths during compression operations, where insufficient input validation permits malicious users to traverse the file system hierarchy and potentially access or manipulate files outside the intended directory scope. This issue affects all versions of Squeeze from the initial release through version 1.7.7, indicating a long-standing flaw that has not been adequately addressed. The path traversal vulnerability stems from the application's failure to properly sanitize or validate file path components before processing them, creating an opening for unauthorized access to system resources.
The technical implementation of this vulnerability demonstrates a classic path traversal attack vector where the malicious input '..././/'. When processed by the Squeeze utility, the application fails to normalize or validate the path components, allowing the traversal sequence to effectively navigate upward through directory structures. This flaw operates at the file system level, where the compression utility accepts user-provided file names or paths and processes them without adequate sanitization. The vulnerability specifically manifests when the software attempts to resolve relative paths, particularly those containing multiple directory traversal components. According to CWE standards, this corresponds to CWE-22 Path Traversal, which is classified as a high-severity weakness in software applications. The attack vector is particularly dangerous because it can be exploited by remote attackers who can manipulate the compression process to access sensitive files or directories that should remain protected.
The operational impact of this vulnerability extends beyond simple unauthorized file access, potentially enabling attackers to execute arbitrary code, modify system files, or exfiltrate sensitive data from systems running vulnerable versions of Squeeze. When exploited, this vulnerability allows adversaries to bypass normal access controls and gain access to files that may contain configuration data, user credentials, or other sensitive information. The attack can be particularly devastating in environments where Squeeze is used for processing user-uploaded files or when the utility is running with elevated privileges. The vulnerability may also enable attackers to create or overwrite files in system directories, potentially leading to privilege escalation or system compromise. From an attacker's perspective, this vulnerability provides a straightforward method to bypass application-level security controls and directly access the underlying file system, making it a preferred target for exploitation in various attack scenarios.
Mitigation strategies for CVE-2026-32415 should prioritize immediate software updates to versions that have addressed this vulnerability through proper input validation and path sanitization. Organizations should implement comprehensive patch management procedures to ensure all instances of Squeeze are updated to versions beyond 1.7.7 where the vulnerability has been resolved. System administrators should also consider implementing additional security controls such as restricting file system access permissions for the Squeeze utility, implementing proper input validation at multiple layers, and monitoring for suspicious file path patterns in logs. The ATT&CK framework categorizes this vulnerability under technique T1059 Command and Scripting Interpreter, specifically focusing on path traversal as a method for privilege escalation and information gathering. Organizations should also consider implementing network segmentation to limit access to systems running Squeeze, and establish proper monitoring for anomalous file access patterns that may indicate exploitation attempts. Additionally, developers should adopt secure coding practices that include input validation, proper path normalization, and the principle of least privilege when designing applications that handle file system operations.