CVE-2024-39686Public exploitNetwork attack vector

Unauthenticated command execution via unquoted data directory

Published Jul 22, 2024 · Updated Aug 2, 2024

OS command injection in Fish Audio Bert-VITS2 2.3 and earlier allows remote attackers to execute commands through the preprocessing UI. The bert_gen function interpolates the user-controlled data_dir into a shell command passed to subprocess.run with shell=True. The Gradio prediction endpoint requires no authentication, and injected shell metacharacters execute with the Bert-VITS2 process's privileges.

CVSS severity9.8
Critical
EPSS probability1.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Fish Audio Bert-VITS2 2.3 and earlier allows remote attackers to execute commands through the preprocessing UI. The bert_gen function interpolates the user-controlled data_dir into a shell command passed to subprocess.run with shell=True. The Gradio prediction endpoint requires no authentication, and injected shell metacharacters execute with the Bert-VITS2 process's privileges.

The record

CVE
CVE-2024-39686
Published
Jul 22, 2024
Updated
Aug 2, 2024
Vendor
Fish Audio
Product
Bert-VITS2
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.3
  2. Affected versionversion=<= 2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fish Audio · Bert-VITS2version=0 <=2.3; version=<= 2.3

Published CVSS scores

9.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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