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TI-2025-20559 Aliases CVE-2025-27779

Applio allows unsafe deserialization in model_blender.py

Priority MEDIUM 48CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

Applio is a voice conversion tool. Versions 3.2.8-bugfix and prior are vulnerable to unsafe deserialization in `model_blender.py` lines 20 and 21. `model_fusion_a` and `model_fusion_b` from voice_blender.py take user-supplied input (e.g. a path to a model) and pass that value to the `run_model_blender_script` and later to `model_blender` function, which loads these two models with `torch.load` in `model_blender.py (on lines 20-21 in 3.2.8-bugfix), which is vulnerable to unsafe deserialization. The issue can lead to remote code execution. A patch is available on the `main` branch of the Applio repository.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00923 60th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
IAHispanoApplioup to 3.2.8-bugfix—No fix listedCNA
  • Applio VendorIAHispano Affected up to 3.2.8-bugfix Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:applio:applio:*:*:*:*:*:*:*:*up to 3.2.8-bugfixVulnerableIAHispano
  • cpe:2.3:a:applio:applio:*:*:*:*:*:*:*:* Versions up to 3.2.8-bugfix Vulnerable ·IAHispano

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-27779

References

Patch 1

Advisory 1

Other 2

  • 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-2025-20558 Applio allows unsafe deserialization in infer.py CVSS 4.0HIGH 8.9
  • TI-2025-20556 Applio allows SSRF and file write in model_download.py CVSS 4.0HIGH 8.8
  • TI-2025-20555 Applio allows SSRF and file write in model_download.py CVSS 4.0HIGH 8.8
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences