Path Traversal in Fishaudio Bert-Vits2
CVE-2026-8756
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.007 (52.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.002
Affected products
- Fishaudio Bert-Vits2 — versions 8f7fbd8c4770965225d258db548da27dc8dd934c
Weakness classification (CWE)
References
- gist.github.com/YLChen-007/550cb92f3489c317ff049fc7d7ea6b99 (exploit)
- vuldb.com/submit/811175 (third-party-advisory)
- vuldb.com/vuln/364383 (technical-description, vdb-entry)
- vuldb.com/vuln/364383/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-8756?
- CVE-2026-8756 is a high-severity vulnerability in Fishaudio Bert-Vits2, classified under Path Traversal. CVSS score: 7.3/10. Published 2026-05-17.
- How severe is CVE-2026-8756?
- High severity. CVSS v3 base score is 7.3 out of 10.