CVE-2026-112086 Details
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.
A remote code execution vulnerability exists in ESPnet versions through 202610.post2. The issue arises in the Inference Model Handler, specifically within the build_model function of espnet3/publication/inference_model.py. The vulnerability is triggered by manipulating the _target_ argument, leading to unauthorized deserialization and execution of code. This flaw can be exploited by publishing a malicious bundle that, when loaded, executes arbitrary code via nested _target_ references. The vulnerability has been publicly disclosed and exploited, with a proof-of-concept demonstrating its impact.
Users are advised to update to the latest version of ESPnet, where this vulnerability has been fixed. The official ESPnet GitHub repository can be checked out for the latest release.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 19, 2026CISA-ADP
Assessed Oct 19, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/espnet/espnet/ | [email protected] | ProductVendor |
| https://github.com/espnet/espnet/commit/f217b24f06de55e332cab10231469d5890dbbe00 | [email protected] | Source CodeVendor |
| https://github.com/espnet/espnet/issues/6828 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/espnet/espnet/pull/6829 | [email protected] | Issue TrackingVendor |
| https://github.com/user-attachments/files/32957363/poc.zip | [email protected] | Broken LinkExploit |
| https://vuldb.com/cve/CVE-2026-112086 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1011320 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/421831 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/421831/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | [email protected] |
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ESPnet | <= 202610.post2 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 19, 2026 | CVE Modified | CISA-ADP |
| Oct 19, 2026 | New CVE Received | [email protected] |