CVE-2024-39685 — Bert-VITS2 is the VITS2 Backbone with multilingual bert

Bert-VITS2 is the VITS2 Backbone with multilingual bert. User input supplied to the data_dir variable is used directly in a command executed with subprocess.run(cmd, shell=True) in the resample function, which leads to arbitrary command execution. This affects fishaudio/Bert-VITS

01What is this vulnerability?

Bert-VITS2 is the VITS2 Backbone with multilingual bert. User input supplied to the data_dir variable is used directly in a command executed with subprocess.run(cmd, shell=True) in the resample function, which leads to arbitrary command execution. This affects fishaudio/Bert-VITS2 2.3 and earlier.

02Affected products

Vendor	Product	Versions
FishAudio	Bert	VITS2 — <= 2.3

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-07-22T15:13:06.926Z
• Last modified: 2024-08-02T04:26:15.950Z

09References

• securitylab.github.com — https://securitylab.github.com/advisories/GHSL-2024-045_GHSL-2024-047_fishaudio_…
• github.com — https://github.com/fishaudio/Bert-VITS2/blob/3f8c537f4aeb281df3fb3c455eed9a1b648…
• github.com — https://github.com/fishaudio/Bert-VITS2/blob/76653b5b6d657143721df2ed6c5c246b4b1…