Vulnerability · Published Oct 19, 2026 · Assigned by VulDB
CVE-2026-112086ESPnet Inference Model inference_model.py build_model deserialization
Medium 6.3
In plain English
A medium-severity unsafe deserialization in ESPnet. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
Official description
A vulnerability was found in ESPnet up to 202610.post2. This affects the function build_model of the file espnet3/publication/inference_model.py of the component Inference Model Handler. The manipulation of the argument _target_ results in deserialization. It is possible to launch the attack remotely. The exploit has been made public and could be used. The patch is identified as f217b24f06de55e332cab10231469d5890dbbe00. It is best practice to apply a patch to resolve this issue.
Affected products (as reported)
Weakness: CWE-502, CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-421831 | ESPnet Inference Model inference_model.py build_model deserialization vdb-entry, technical-description
- VDB-421831 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-112086 | CVE Analysis and Report third-party-advisory
- Submit #1011320 | ESPnet espnet up to 202610.post2 (latest PyPI release); git master @ bc6dd4a also verified Insecure Deserialization third-party-advisory
- https://github.com/espnet/espnet/issues/6828 issue-tracking
- https://github.com/espnet/espnet/pull/6829 issue-tracking, patch
- https://github.com/user-attachments/files/32957363/poc.zip exploit
- https://github.com/espnet/espnet/commit/f217b24f06de55e332cab10231469d5890dbbe00 patch
- https://github.com/espnet/espnet/ product