Path Traversal Vulnerability in fishaudio Bert-VITS2 Gradio Interface
CVE-2026-8756

6.9MEDIUM

Key Information:

Vendor

Fishaudio

Status
Bert-vits2
Vendor
CVE Published:
17 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8756?

A path traversal vulnerability has been discovered in the fishaudio Bert-VITS2 Gradio interface, specifically within the generate_config function of the webui_preprocess.py file. This flaw allows attackers to manipulate the data_dir argument, potentially enabling unauthorized access to sensitive files on the server. The vulnerability can be exploited remotely, posing a significant risk to users of the affected versions. Although the vendor was notified of this issue, they have not responded, heightening the urgency for users to secure their systems against potential exploitation.

Affected Version(s)

Bert-VITS2 8f7fbd8c4770965225d258db548da27dc8dd934c

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-8756 - Proof of Concept

References

https://vuldb.com/vuln/364383
vdb-entrytechnical-description
https://vuldb.com/vuln/364383/cti
signaturepermissions-required
https://vuldb.com/submit/811175
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eric-b (VulDB User)
VulDB CNA Team
.