Model filename disclosure via unrestricted root directory
Published May 17, 2026 · Updated May 17, 2026
Path traversal in Fish Audio Bert-VITS2 allows remote attackers to enumerate model filenames outside the configured data directory. The unauthenticated /models/get_local and /models/get_unloaded endpoints pass attacker-controlled root_dir values to get_all_models, which calls os.listdir and joins paths without confining them to Data. A reachable hiyoriUI.py FastAPI service is required, and responses expose matching G*.pth filenames rather than arbitrary file contents.
Summary
What happened
Path traversal in Fish Audio Bert-VITS2 allows remote attackers to enumerate model filenames outside the configured data directory. The unauthenticated /models/get_local and /models/get_unloaded endpoints pass attacker-controlled root_dir values to get_all_models, which calls os.listdir and joins paths without confining them to Data. A reachable hiyoriUI.py FastAPI service is required, and responses expose matching G*.pth filenames rather than arbitrary file contents.
The record
- CVE
- CVE-2026-8755
- Published
- May 17, 2026
- Updated
- May 17, 2026
- Vendor
- Fish Audio
- Product
- Bert-VITS2
- Classifications
- CWE-22, T1083
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 17, 2026CVE publishedPublication date reported by the CVE source.
- May 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=8f7fbd8c4770965225d258db548da27dc8dd934c
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- Bert-VITS2 path traversal proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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