CVE-2026-24152
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedNVIDIA Megatron-LM contains a vulnerability in checkpoint loading where an Attacker may cause an RCE by convincing a user to load a maliciously crafted file. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceNVIDIA Megatron-LM contains a vulnerability in its checkpoint loading mechanism that allows remote code execution. An attacker can craft a malicious checkpoint file that, when loaded by a user, executes arbitrary code on the victim's system with the privileges of the user loading the checkpoint.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 0.15.3CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify installed Megatron-LM versionRun 'pip show megatron-lm' or check the package version in your Python environmentAffected if The installed version is lower than 0.15.3
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Review checkpoint loading codeInspect the codebase where checkpoint loading occurs, looking for the functions that deserialize checkpoint filesAffected if Checkpoint deserialization does not include cryptographic signature verification or integrity validation
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Audit checkpoint sourcesIdentify where checkpoint files originate (local storage, remote URLs, third-party repositories) and whether they are from trusted sources onlyAffected if Checkpoints are loaded from untrusted or external sources without validation
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Check for sandboxing during loadingExamine the runtime environment where checkpoint loading executes (container, VM, or process isolation)Affected if Checkpoint loading runs with full user privileges in an unsandboxed environment
You are affected if your Megatron-LM version is below 0.15.3 and you load checkpoints without integrity verification from any source you do not fully trust.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped0.15.3
Organizations using Megatron-LM should implement strict validation of checkpoint file integrity (e.g., cryptographic signatures) before loading, avoid loading checkpoints from untrusted sources, and consider running checkpoint loading in sandboxed environments with limited privileges.
Megatron LM version 0.15.3 or later
- Identify the current Megatron LM version in use by checking the installed package version or requirements file
- Backup all existing checkpoint files before upgrading
- Upgrade Megatron LM to version 0.15.3 or the latest stable release using: pip install megatron-lm==0.15.3 (or pip install --upgrade megatron-lm)
- Verify the upgrade was successful by checking: pip show megatron-lm
- Test checkpoint loading functionality with existing checkpoints to ensure no regressions
- If using a custom checkpoint loading implementation, review the checkpoint loading code for any deserialization of untrusted data and ensure proper validation is in place
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-24152 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-24152 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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