ZDI-CAN-29625: ZDI-26-930: (0Day) Meta fairseq LightConvLanguageModel 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?
An attacker needs the target to open a malicious YAML file. Exploitation then allows the attacker to execute arbitrary code on the affected Meta fairseq installation.
2
Is user interaction required?
Yes. The target must open an attacker-crafted malicious file for exploitation to occur.
3
How severe is the issue?
ZDI assigned this vulnerability a CVSS rating of 7.8, and the reported risk value is 71.