CVE-2025-14921: (0Day) Hugging Face Transformers Transformer-XL Model Deserialization of Untrusted Data Remote Code Execution Vulnerability
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. Was ZDI-CAN-25424.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-14921?
CVE-2025-14921 is classified as a critical severity vulnerability due to the potential for remote code execution.
How do I fix CVE-2025-14921?
To mitigate CVE-2025-14921, update to the latest version of Hugging Face Transformers that addresses this vulnerability.
What causes CVE-2025-14921?
CVE-2025-14921 is caused by improper deserialization of untrusted data in the Transformer-XL model of Hugging Face Transformers.
Who is affected by CVE-2025-14921?
Users of Hugging Face Transformers, particularly those utilizing the Transformer-XL model, are affected by CVE-2025-14921.
What are the implications of CVE-2025-14921?
The implications of CVE-2025-14921 include the potential for remote attackers to execute arbitrary code on vulnerable installations.