Vulnerability · Published Mar 11, 2026 · Assigned by GitHub_M
CVE-2026-27897Vociferous Unauthenticated Remote Path Traversal (RCE via CSRF)
Critical 10.0
In plain English
A critical-severity path traversal in Vociferous from WanderingAstronomer. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WanderingAstronomer | Vociferous | < 4.4.2 |
Weakness: CWE-22, CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H