CVE-2026-34981
The file extension check occurs AFTER the HTTP request is already made, and can be bypassed by appending .mp3 to any internal URL.
Does this matter?
Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
- EPSS
- 0.25% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Affected
- pavelzbornik/whisperx rest api
- Source
- security-advisories@github.com
References
- https://github.com/pavelzbornik/whisperX-FastAPI/commit/ef78fe2001deede5354031e4200d41c6a7e8cbfcPatch
- https://github.com/pavelzbornik/whisperX-FastAPI/issues/256Issue Tracking, Patch
- https://github.com/pavelzbornik/whisperX-FastAPI/security/advisories/GHSA-6rc7-r867-c635Exploit, Mitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.