CVE-2026-8756 Details
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.
A path traversal vulnerability has been identified in the fishaudio Bert-VITS2 project, specifically in the Gradio interface component. The issue arises in the 'generate_config' function within 'webui_preprocess.py', where user-supplied 'data_dir' arguments are not properly sanitized. This lack of validation allows remote attackers to manipulate the 'data_dir' parameter, escape the intended directory, and create arbitrary directories or overwrite configuration files, such as 'config.json', with controlled data. The vulnerability affects Bert-VITS2 versions up to commit 8f7fbd8c4770965225d258db548da27dc8dd934c.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 17, 2026CISA-ADP
Assessed May 18, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/YLChen-007/550cb92f3489c317ff049fc7d7ea6b99 | [email protected] | ExploitTechnical Description |
| https://vuldb.com/submit/811175 | [email protected] | Permission Required |
| https://vuldb.com/vuln/364383 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/364383/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| fishaudio Bert-VITS2 | 406b79a |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 17, 2026 | New CVE Received | [email protected] |