CVE-2026-112086 ESPnet Inference Model inference_model.py build_model deserialization
Remote attackers can execute arbitrary code via unsafe deserialization in the ESPnet inference model handler, requiring a patch.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-112086?
CVE-2026-112086 is a medium-severity unsafe deserialization vulnerability in ESPnet, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Which versions are affected by CVE-2026-112086?
How do I fix CVE-2026-112086?
No fix has been published for CVE-2026-112086 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-112086 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112086 exists.
Sources
Also known as GHSA-v5q2-hr9p-q4jv.