Applio allows SSRF and file write in model_download.py
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Applio is a voice conversion tool. Versions 3.2.7 and prior are vulnerable to server-side request forgery (SSRF) and file write in `model_download.py` (line 240 in 3.2.7). The blind SSRF allows for sending requests on behalf of Applio server and can be leveraged to probe for other vulnerabilities on the server itself or on other back-end systems on the internal network, that the Applio server can reach. The blind SSRF can also be coupled with the arbitrary file read CVE-2025-27784 to read files from hosts on the internal network, that the Applio server can reach, which would make it a full SSRF. The file write allows for writing files on the server, which can be coupled with other vulnerabilities, for example an unsafe deserialization, to achieve remote code execution on the Applio server. As of time of publication, no known patches are available.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-27776
References
Other 3
- https://github.com/IAHispano/Applio/blob/29b4a00e4be209f9aac51cd9ccffcc632dfb2973/assets/flask/routes.py#L14
- https://github.com/IAHispano/Applio/blob/29b4a00e4be209f9aac51cd9ccffcc632dfb2973/rvc/lib/tools/model_download.py#L240
- https://github.com/IAHispano/Applio/blob/29b4a00e4be209f9aac51cd9ccffcc632dfb2973/tabs/download/download.py#L192-L196
More IAHispano Applio vulnerabilities
- TI-2025-20561 Applio allows unsafe deserialization in inference.py CVSS 4.0HIGH 8.9
- TI-2025-20565 Applio allows arbitrary file read in train.py export_index function CVSS 4.0HIGH 7.7
- TI-2025-20560 Applio allows unsafe deserialization in model_information.py CVSS 4.0HIGH 8.9
- TI-2025-20559 Applio allows unsafe deserialization in model_blender.py CVSS 4.0HIGH 8.9
- TI-2025-20558 Applio allows unsafe deserialization in infer.py CVSS 4.0HIGH 8.9
- TI-2025-20555 Applio allows SSRF and file write in model_download.py CVSS 4.0HIGH 8.8
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences