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Security Advisories: GSA_kwCzR0hTQS1ycHg3LTMzajIteHg5eM0hRA

Arbitrary file deletion in NeMo ASR webapp


NVIDIA NeMo contains a vulnerability in ASR WebApp, where Relative Path Traversal (CWE-23) may lead to deletion of any directory through the "../" structure when admin privileges are available.

CVSS Score = 2.0


When the optional tool ASR Webapp ( is used prior to commit, some interfaces do not verify user input. Malicious attackers can construct malicious requests to delete any directory through the "../" structure.

The vulnerability affects only cases where this particular web app is started by a user with superuser permissions. The web application is not a part of the regular pip release or the corresponding container, and impacts only users that clone the repository in its entirety and execute the web app (while also possessing superuser permissions).


This vulnerability has been patched via, which is effectively any clone of the repository post r1.5.1 branch. Since the web app is not distributed via pip release or container, users who clone the main branch post this commit will possess the patch.


The changes in commit can be applied to any version of the web app without any adverse effect.

Additional Information

Exploit Found on: 2021.12.16
Exploit Found by: @haby0

Source: GitHub Advisory Database
Origin: Unspecified
Severity: Low
Classification: General
Published: about 2 years ago
Updated: over 1 year ago

CVSS Score: 2.0
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N

Identifiers: GHSA-rpx7-33j2-xx9x
References: Repository:
Blast Radius: 2.9

Affected Packages

Dependent packages: 3
Dependent repositories: 27
Downloads: 58,698 last month
Affected Version Ranges: < 1.6.0
Fixed in: 1.6.0
All affected versions:
All unaffected versions: