ZDI-26-936: (0Day) Meta fairseq FairseqCPUAdam 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 persuade the target to open a malicious YAML file. Exploitation requires user interaction and can result in arbitrary code execution.
2
Who is exposed to this vulnerability?
Installations of Meta fairseq are affected according to the advisory. The provided information does not identify affected versions, configurations, or a patch.