PT-2026-45518 · Swivid · F5-Tts

Yu Sun · Published 2026-06-01 · Updated 2026-06-01 · CVE-2026-43624

NVD

CVSS v3.1

8.2

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

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.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-43624

Affected Products

F5-Tts

References · 5

• 🔥 https://github.com/SWivid/F5-TTS/issues/1293 · Exploit
• https://github.com/SWivid/F5-TTS/commit/2f53ded68e5f69e248ceb200a51ef4d1dc647936 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-43624 · Security Note
• https://github.com/SWivid/F5-TTS/pull/1294 · Note
• https://vulncheck.com/advisories/f5-tts-path-traversal-via-finetune-gradio-py-create-data-project · Note