CVE-2025-33253: PYSEC-2026-2673 - NVIDIA NeMo Framework Deserializes Untrusted Data

CVE-2025-33253 · Severity: low · CVSS 3.1 · Published 2026-07-13

NVIDIA NeMo Framework Deserializes Untrusted Data

Technologies: nemo-toolkit (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-33253 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-33253 being exploited in the wild.
How severe is CVE-2025-33253?
Low severity, with a CVSS score of 3.1, published 13 July 2026.
Which products and versions are affected?
nemo-toolkit (PyPI) ECOSYSTEM:introduced=0,fixed=2.6.1.
Is there a fix for CVE-2025-33253?
Yes. nemo-toolkit (PyPI): upgrade to 2.6.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-33253?
Check whether you run nemo-toolkit (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • nemo-toolkit (PyPI): upgrade to 2.6.1 or later
    pip install "nemo-toolkit>=2.6.1"

Affected products

  • nemo-toolkit (PyPI) ECOSYSTEM:introduced=0,fixed=2.6.1

Identifiers

  • CVE-2025-33253
  • GHSA-hvjw-vp7g-39h5
  • PYSEC-2026-2673

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