ZDI-26-927: (0Day) Meta fairseq FairseqAdam 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 must an attacker do to exploit this issue?
An attacker must convince the target to open a malicious YAML file. Exploitation requires user interaction rather than occurring solely through network access.
2
What level of impact could successful exploitation have?
Successful exploitation can allow an attacker to execute arbitrary code on an affected Meta fairseq installation. ZDI assigned the issue a CVSS rating of 7.8.