Patch Ticker

Stanza lemmatizer checkpoint loading allows arbitrary code execution

Programs using this Python language tool can be hacked.

Summary

The Stanza Python NLP library passes nested pickle data from a lemmatizer model file to an unrestricted loader. Loading an attacker-supplied model can execute arbitrary code; versions from 1.14.0 until 1.15.0 are affected.

Affected when

  • Stanza 1.14.0 to before 1.15.0
  • Loading an attacker-supplied lemmatizer model file

What to do

Update to Stanza 1.15.0.

Products and platforms

  • stanfordnlp stanza

CVE IDs

Sources

Times

First published

First seen