CVE-2026-34981
MEDIUMwhisperX REST API: SSRF in download_from_url() — URL validation happens after HTTP request, extension bypass via .mp3
Title source: cnaDescription
The whisperX API is a tool for enhancing and analyzing audio content. From 0.3.1 to 0.5.0, FileService.download_from_url() in app/services/file_service.py calls requests.get(url) with zero URL validation. The file extension check occurs AFTER the HTTP request is already made, and can be bypassed by appending .mp3 to any internal URL. The /speech-to-text-url endpoint is unauthenticated. This vulnerability is fixed in 0.6.0.
References (3)
Scores
CVSS v3
5.8
EPSS
0.0004
EPSS Percentile
11.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Details
CWE
CWE-918
Status
published
Products (1)
pavelzbornik/whisperX-FastAPI
>= 0.3.1, < 0.6.0
Published
Apr 06, 2026
Tracked Since
Apr 06, 2026