CVE-2025-14921
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.
EPSS 0.33% · 23.7th percentile
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| huggingface | transformers | 4.54.1, 4.54.1 |
| Hugging Face | Transformers | 9c8bd3fc1befe54f3efb9f385561eef49f060a70, * |
Timeline
- Dec 18, 2025 PoC Published
- Dec 18, 2025 CVE Published
- Dec 23, 2025 PoC Published
- Dec 24, 2025 EPSS Score
- Dec 28, 2025 EPSS Score
- Jan 1, 2026 EPSS Score
- Jan 5, 2026 EPSS Score
- Jan 10, 2026 EPSS Score
- Jan 14, 2026 EPSS Score
- Jan 18, 2026 EPSS Score
- Jan 19, 2026 Nuclei Template
- Jan 19, 2026 Fix Commit