The huggingface/transformers library is vulnerable to arbitrary code execution through deserialization of untrusted data within the `load_repo_checkpoint()` function of the `TFPreTrainedModel()` class. Attackers can execute arbitrary code and commands by crafting a malicious serialized payload, exploiting the use of `pickle.load()` on data from potentially untrusted sources. This vulnerability allows for remote code execution (RCE) by deceiving victims into loading a seemingly harmless checkpoint during a normal training process, thereby enabling attackers to execute arbitrary code on the targeted machine.
Why This Matters
The evidence matters to defenders using transformers library because it could let an attacker run code in affected environments.
Recommended Action
Confirm whether huggingface is present in your environment and review vendor guidance for this report. Apply available patches or mitigations if your deployment matches the described conditions.