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CVE-2026-27897

CRITICAL CVSS 3.1: 7.1 EPSS 0.09%
Updated Mar 20, 2026
Wanderingastronomer
Parameter Value
CVSS 7.1 (CRITICAL)
Affected Versions before 4.4.2
Fixed In 4.4.2
Type CWE-306 (Missing Authentication for Critical Function), CWE-22 (Path Traversal)
Vendor Wanderingastronomer
Public PoC No

Vociferous provides cross-platform, offline speech-to-text with local AI refinement. Prior to 4.4.2, the vulnerability exists in src/api/system.py within the export_file route. The application accepts a JSON payload containing a filename and content.

While the developer intended for a native UI dialog to handle the file path, the API does not validate the filename string before it is processed by the backends filesystem logic. Because the API is unauthenticated and the CORS configuration in app.py is overly permissive (allow_origins=["*"] or allowing localhost), an external attacker can bypass the UI entirely. By using directory traversal sequences (../), an attacker can force the app to write arbitrary data to any location accessible by the current user's permissions.

This vulnerability is fixed in 4.4.2.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Wanderingastronomer Vociferous
cpe:2.3:a:wanderingastronomer:vociferous:*:*:*:*:*:*:*:*
4.4.2