ZDI-25-1149: (0Day) Hugging Face Transformers Transformer-XL Model Deserialization of Untrusted Data Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hugging Face Transformers. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of model files. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current user.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hugging Face Transformers. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2025-14921.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-1149?
The severity of ZDI-25-1149 is classified as high due to the potential for remote code execution.
How do I fix ZDI-25-1149?
To fix ZDI-25-1149, update Hugging Face Transformers to the latest version that addresses this vulnerability.
Who is affected by ZDI-25-1149?
Users of Hugging Face Transformers are affected by ZDI-25-1149 if they have not applied the latest security updates.
What type of attack is ZDI-25-1149 associated with?
ZDI-25-1149 is associated with remote code execution attacks that require user interaction.
Is user interaction required for ZDI-25-1149 exploitation?
Yes, user interaction is required for ZDI-25-1149 exploitation, as the target must visit a malicious page or open a malicious file.