Hugging Face Transformers vulnerable to Regular Expression Denial of Service (ReDoS) in the AdamWeightDecay optimizer

The huggingface/transformers library, versions prior to 4.53.0, is vulnerable to Regular Expression Denial of Service ReDoS in the AdamWeightDecay optimizer. The vulnerability arises from the douseweightdecay method, which processes user-controlled regular expressions in the includeinweightdecay...

CVE-2025-6921

CVE-2025-6921 affects the huggingface/transformers library prior to 4.53.0, causing a Regular Expression Denial of Service (ReDoS) in the AdamWeightDecay optimizer via unsafe handling in _do_use_weight_decay of include_in_weight_decay/exclude_from_weight_decay. IBM Maximo Application Suite Monito...