CVE-2021-41127

Maliciously Crafted Model Archive Can Lead To Arbitrary File Write in rasa

HIGH
7.1
CVSS Score
Published: October 21, 2021 at 08:15 PM UTC
Updated: June 17, 2026 at 04:07 AM UTC
2 products affected across 2 vendorsRasaRasa

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Severity
HIGH7.1
Exploit prediction
EPSS 0.8%

Description

Rasa is an open source machine learning framework to automate text-and voice-based conversations. In affected versions a vulnerability exists in the functionality that loads a trained model `tar.gz` file which allows a malicious actor to craft a `model.tar.gz` file which can overwrite or replace bot files in the bot directory. 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.8.10
Affected range stops below 2.8.10, so it looks safe — our inference, not a vendor statement
v < 2.8.10
Affected range stops below 2.8.10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-22CWE-23

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