CVE-2026-24157: Remote Code Execution Vulnerability in NVIDIA NeMo Framework's Checkpoint Loading
Summary
CVE-2026-24157: NVIDIA NeMo Framework contains an RCE vulnerability in checkpoint loading. Affects nemo-toolkit versions < 2.6.2. Fixed in 2.6.2. How to fix ↓
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Background
The NVIDIA NeMo Framework is an open-source toolkit designed for building and training state-of-the-art conversational AI models. It provides a flexible architecture and a set of pre-built components that facilitate the development of natural language processing applications. However, a critical vulnerability has been identified in the checkpoint loading functionality, which could potentially expose users to significant security risks.
Vulnerability Detail
NVIDIA NeMo Framework contains a vulnerability in its checkpoint loading mechanism, where an attacker could exploit this flaw to execute arbitrary code remotely. This vulnerability arises from improper handling of untrusted data during the loading process. If successfully exploited, it could lead to severe consequences, including unauthorized code execution, privilege escalation, information disclosure, and data tampering. The vulnerability is classified under CWE-502, which pertains to deserialization of untrusted data.
How To Fix
Latest published version: 3.0.0 as of 23 Oct 2026
pip install --upgrade "nemo-toolkit==3.0.0"Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
2.6.2
This is the first release that contains the fix.
pip install --upgrade "nemo-toolkit==2.6.2"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, avoid loading untrusted checkpoint files until the package is updated. Ensure that all checkpoint files are sourced from trusted origins.
Conclusion
The NVIDIA NeMo Framework has a critical vulnerability in its checkpoint loading functionality that could lead to remote code execution. Users are strongly advised to update to the latest version to mitigate the risks associated with this vulnerability. Additionally, utilizing tools like Vulert can help monitor and alert for open-source vulnerabilities in your software.
See every vulnerability recorded for nemo-toolkit →
FAQ
The CVSS score of this vulnerability is 7.8, indicating a high severity level.
The potential impacts include remote code execution, privilege escalation, information disclosure, and data tampering.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
Yes, a patch is available in version 2.6.2 of the 'nemo-toolkit' package. It is recommended to update to this version.
If you cannot update the package immediately, avoid loading untrusted checkpoint files as a temporary workaround.
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