CVE-2026-115878

Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages.

Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages. From 1.14.0 until 1.15.0, loading an attacker-supplied lemmatizer checkpoint can execute arbitrary code because stanza/models/lemma/trainer.py stores pos_dict as gzip-compressed pickle bytes and Trainer.load passes the decompressed stream to unrestricted pickle.loads. The outer torch.load call uses weights_only=True, but the nested bytes are treated as a…

3. Nov 2026

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• NVD
  CVE-2026-115878