---
id: CVE-2025-33253
aliases:
  - GHSA-hvjw-vp7g-39h5
  - PYSEC-2026-2673
title: NVIDIA NeMo Framework Deserializes Untrusted Data
summary: NVIDIA NeMo Framework Deserializes Untrusted Data
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: nemo-toolkit
product: nemo-toolkit
ecosystem: pip
affected:
  - nemo-toolkit < 2.6.1
patched:
  - nemo-toolkit 2.6.1
published: '2026-02-18'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-hvjw-vp7g-39h5'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-33253'
  - url: 'https://github.com/NVIDIA-NeMo/NeMo'
  - url: 'https://nvidia.custhelp.com/app/answers/detail/a_id/5762'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2025-33253'
tags:
  - osv
  - pip
epss: 0.00193
epssPercentile: 0.09322
ingestedAt: '2026-07-13T18:57:59.473Z'
---

## Overview

NVIDIA NeMo Framework contains a vulnerability where an attacker could cause remote code execution by convincing a user to load a maliciously crafted file. A successful exploit of this vulnerability might lead to code execution, denial of service, information disclosure, and data tampering.

## Affected packages

- `nemo-toolkit < 2.6.1`

## Remediation

Upgrade to a patched release:

- `nemo-toolkit 2.6.1`