CVE-2026-43624
F5-TTS 1.1.20 Path Traversal via finetune_gradio.py create_data_project()
- State
- Published
- Severity
- 8.8 High
- Published
- Jun 1, 2026
- Updated
- Jul 14, 2026
- Reserved
- May 1, 2026
Description
F5-TTS through version 1.1.20 contains a path traversal vulnerability in the finetune Gradio handlers that allows unauthenticated attackers to write arbitrary files by passing unsanitized user-supplied project names directly to os.path.join() without validating the resulting path stays within the intended base directory. Attackers can supply absolute path arguments such as /tmp/EVIL to override the base directory entirely and create arbitrary directories with attacker-controlled JSON content at any filesystem path writable by the server process.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.8 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L | VulnCheck |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
F5-TTSSWivid |
|
References
- https://github.com/SWivid/F5-TTS/issues/1293issue-tracking
- https://github.com/SWivid/F5-TTS/pull/1294issue-tracking
- https://github.com/SWivid/F5-TTS/commit/2f53ded68e5f69e248ceb200a51ef4d1dc647936patch
- https://www.vulncheck.com/advisories/f5-tts-path-traversal-via-finetune-gradio-py-create-data-projectthird-party-advisory
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