Maliciously Crafted Model Archive Can Lead To Arbitrary File Write
Impact
An Archive Extraction (Zip Slip) vulnerability in the functionality that allows a user to load a trained model archive in Rasa 2.8.9 and older allows an attacker arbitrary write capability within specific directories using a malicious crafted archive file.
Patches
The vulnerability is fixed in Rasa 2.8.10
Workarounds
Mitigating steps for vulnerable end users are to ensure that they do not upload untrusted model files, and restrict CLI or API endpoint access where a malicious actor could target a deployed Rasa instance.
For more information
If you have any questions or comments about this advisory:
- Email the Rasa Security Team
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | rasa | < 2.8.10 | 2.8.10 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H- Weakness (CWE)
CWE-22, CWE-23- Platform
- Python (PyPI)
- Package
rasa- Disclosed
- 21.10.2021
- Updated
- 11.10.2026 13:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2021-381 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-4365-fhm5-qcrx - CC BY 4.0
Vulnerability history: rasa
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 10.2021 01.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 1
Disclosures per year
- 2021: 1
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 1
- 2026: 0
-
Maliciously Crafted Model Archive Can Lead To Arbitrary File Write this entry
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