CVE-2026-43624 F5-TTS 1.1.20 Path Traversal via finetune_gradio.py create_data_project()
Unauthenticated attackers can write arbitrary files to the server filesystem via path traversal in the finetune Gradio handler, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-43624?
CVE-2026-43624 is a high-severity path traversal vulnerability in SWivid F5-TTS, published on 1 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-22
Which versions are affected by CVE-2026-43624?
How do I fix CVE-2026-43624?
No fix has been published for CVE-2026-43624 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-43624 being exploited?
There is no known exploitation of CVE-2026-43624 in the wild and no public exploit code.
Sources
Also known as GHSA-93wx-x4m2-5c8f.