CVE-2026-8756 fishaudio Bert-VITS2 Gradio webui_preprocess.py generate_config path traversal
Remote attackers can exploit a path traversal vulnerability in the Bert-VITS2 Gradio interface to read or modify arbitrary files on the server.
- 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-2026-8756?
CVE-2026-8756 is a medium-severity path traversal vulnerability in fishaudio Bert-VITS2, published on 17 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been found in fishaudio Bert-VITS2 up to 8f7fbd8c4770965225d258db548da27dc8dd934c. The impacted element is the function generate_config of the file webui_preprocess.py of the component Gradio Interface. Such manipulation of the argument data_dir leads to path traversal. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-22
Which versions are affected by CVE-2026-8756?
How do I fix CVE-2026-8756?
No fix has been published for CVE-2026-8756 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-2026-8756 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8756 exists.
Sources
Also known as GHSA-g26q-578c-pc62.