ZDI-CAN-29592: ZDI-26-933: (0Day) Meta fairseq MultiresHubertModel YAML File Parsing Code Injection Remote Code Execution Vulnerability

Published Nov 11, 2026
·
Updated

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Meta fairseq. User interaction is required to exploit this vulnerability in that the target must open a malicious file. The ZDI has assigned a CVSS rating of 7.8.

Event History

Nov 11, 2026
Advisory Published
via ZDI·06:00 AM
Data Sourced
via ZDI·06:00 AM
Description

Frequently Asked Questions

1

What does an attacker need to exploit this issue?

The attacker must persuade a target user to open a malicious YAML file. Exploitation requires user interaction; the available information does not indicate that simply receiving or storing the file is sufficient.

2

Who is realistically exposed?

Users of affected Meta fairseq installations who open YAML files from untrusted or attacker-controlled sources are exposed. The issue can result in arbitrary code execution in the context of the user or process opening the malicious file.

3

How urgent is remediation?

ZDI assigned a CVSS score of 7.8, indicating a high-severity issue. Prioritize affected systems where users or automated workflows may open externally supplied YAML files.

Contact

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