CVE-2026-54499 | BDVDB-2026-346227 Detail

Description#

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(..., weights_only=True) but fall back to torch.load(..., weights_only=False) on attacker-controllable pickle.UnpicklingError, allowing a malicious .pt pretrain or model file to execute arbitrary pickle code when a Stanza NLP pipeline loads it. This issue is fixed in version 1.12.2.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-07-08Record published in the CVE List.
2. Version 22026-07-09Most recent update recorded in the CVE List.