CVE-2026-24157 — nemo-toolkit
HIGHCVE-2026-24157 is a high-severity (CVSS 7.8) Deserialization of Untrusted Data vulnerability in nemo-toolkit. A fix is available for nemo-toolkit — see the affected versions and patch details below.
NVIDIA NeMo Framework contains an RCE vulnerability in checkpoint loading
Exploitation Status
No confirmed exploitation observed yet
- A successful exploit gives an attacker total control of the affected component, not partial access.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-24157.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
nemo-toolkitReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
NVIDIA NeMo Framework contains a vulnerability in checkpoint loading where an attacker could cause remote code execution. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, information disclosure and data tampering.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | nemo-toolkit | all versions | 2.6.2pip install --upgrade 'nemo-toolkit==2.6.2' |
Affected Products
nemonvidiaDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nemo-toolkit, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update nemo-toolkit to 2.6.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-24157 is resolved across your whole dependency graph.
Workarounds
Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.
Frequently Asked Questions
Is CVE-2026-24157 in your dependencies?
Find it across PyPI, including transitive dependencies.