CVE-2024-39688Public exploitNetwork attack vector

Unauthenticated file write via unconstrained data directory

Published Jul 22, 2024 · Updated Aug 2, 2024

Path traversal in Fish Audio Bert-VITS2 2.3 and earlier allows remote attackers to write config.json beneath an arbitrary existing directory. The generate_config function passes untrusted data_dir input through os.path.join and opens the resulting data//configs/config.json path for writing without constraining it to the data tree. An unauthenticated request to the exposed Gradio /run/predict endpoint can overwrite that fixed-name file and use error differences to discover existing server directories.

CVSS severity6.5
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Fish Audio Bert-VITS2 2.3 and earlier allows remote attackers to write config.json beneath an arbitrary existing directory. The generate_config function passes untrusted data_dir input through os.path.join and opens the resulting data//configs/config.json path for writing without constraining it to the data tree. An unauthenticated request to the exposed Gradio /run/predict endpoint can overwrite that fixed-name file and use error differences to discover existing server directories.

The record

CVE
CVE-2024-39688
Published
Jul 22, 2024
Updated
Aug 2, 2024
Vendor
Fish Audio
Product
Bert-VITS2
Classifications
CWE-22, T1565.001, T1083
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

6.5GitHub CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation
T1083File and Directory Discovery

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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