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HighVulnerability

CVE-2021-41127: Rasa arbitrary file overwrite via crafted model tar.gz loading

Identifier
CVE-2021-41127
Published
Record updated
View JSON
Affected
  • rasa < 2.8.10
Fixed in
2.8.10
  • released October 15, 2021, 6 days before disclosure
Known exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS
0.8%

Summary

Rasa, an open source machine learning framework for text and voice conversations, has a vulnerability in its function that loads trained model `tar.gz` files. A malicious actor can craft a `model.tar.gz` file that overwrites or replaces bot files in the bot directory.

Mitigation

The vulnerability is fixed in Rasa 2.8.10. For users unable to update, ensure that users do not upload untrusted model files, and restrict CLI or API endpoint access where a malicious actor could target a deployed Rasa instance.