CVE-2026-24251: NVIDIA Megatron Bridge deserialization in code resource management

CVE-2026-24251 · Severity: high · CVSS 7.8 · Published 2026-07-01

NVIDIA Megatron Bridge, a tool used for connecting large language model frameworks, contains a security vulnerability in how it handles code resources. A local attacker with basic user access could exploit this flaw to take control of the system, modify sensitive data, or access private information. This could lead to a full compromise of the environment where the AI models are being developed or deployed.

Technologies: Nvidia Megatron-Bridge. Vendors: Nvidia.

Quick answers

Is CVE-2026-24251 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-24251 being exploited in the wild.
How severe is CVE-2026-24251?
High severity, with a CVSS score of 7.8, published 1 July 2026.
Which products and versions are affected?
Nvidia Megatron-Bridge 0.0 to 0.4.0.
Is there a fix for CVE-2026-24251?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-24251 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-24251?
Check whether you run Nvidia Megatron-Bridge 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.

Technical details

NVIDIA Megatron Bridge for Linux (versions 0.0 through 0.4.0) is vulnerable to the deserialization of untrusted data (CWE-502). The flaw exists in the management of dynamically controlled code resources, where improper validation allows an attacker to influence the execution flow. An attacker with local access and low privileges can exploit this vulnerability to achieve arbitrary code execution, escalate their privileges on the host system, and perform unauthorized data tampering or information disclosure. The attack vector is local (AV:L) and requires no user interaction.

Affected products

  • NVIDIA Megatron-Bridge 0.0 to 0.4.0

Timeline

  • 2026-07-01: disclosed: Initial publication of the CVE record
  • 2026-07-01: advisory: NVIDIA product security advisory published

References

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