CVE-2026-54499

Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages. Prior to 1.12.2, Stanza model loaders such as stanza.models.common.pretrain.Pretrain.load attempt torch.load..., weightsonly=True but fall back to torch.load...,...

CVE-2026-54499

CVE-2026-54499 affects Stanza prior to 1.12.2, where model loading uses torch.load(..., weights_only=True) and on an attacker-controllable pickle.UnpicklingError falls back to weights_only=False, enabling arbitrary pickle code execution when loading a malicious .pt pretrain/file. The vulnerabilit...

PT-2026-51062

Name of the Vulnerable Software and Affected Versions Stanza version 1.12.0 Description An issue exists where the software attempts to load PyTorch checkpoint files using a safe method but automatically falls back to an unsafe deserialization process when a pickle.UnpicklingError occurs. Because...