# CVE-2026-24249: NVIDIA Megatron Bridge deserialization of untrusted data

Source: https://junglewise.ai/threats/cve-2026-24249-nvidia-megatron-bridge-deserialization-of-untrusted-data  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-01. Updated: 2026-07-01  
License: CC BY 4.0 with a link back

CVE-2026-24249 · Severity: high · CVSS 7.8 · Published 2026-07-01

NVIDIA Megatron Bridge, a tool used for bridging large-scale machine learning models, contains a security flaw in how it handles data. An attacker with local access to a system could exploit this to run unauthorized commands, gain higher system privileges, or access sensitive information. This could lead to a full system compromise or the theft of proprietary AI model data.

Technologies: [Nvidia Megatron-Bridge](https://junglewise.ai/threats/technologies/megatron-bridge). Vendors: [Nvidia](https://junglewise.ai/threats/vendors/nvidia).

## Quick answers

**Is CVE-2026-24249 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-24249 being exploited in the wild.

**How severe is CVE-2026-24249?** 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-2026-24249?** 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-2026-24249 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-24249?** 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-94). The vulnerability allows a local attacker with low privileges to provide a specially crafted input that, when processed by the bridge, executes arbitrary code. This can result in a complete loss of confidentiality, integrity, and availability (CVSS 7.8). The attack vector is local, requiring the attacker to have an existing foothold on the system, but no user interaction is required for successful exploitation.

## Affected products

- NVIDIA Megatron-Bridge 0.0 to 0.4.0

## Timeline

- 2026-07-01: advisory: NVIDIA published the security advisory and CVE details.

## References

- [https://github.com/NVIDIA/product-security/tree/main/2026/5841](https://github.com/NVIDIA/product-security/tree/main/2026/5841)
- [https://www.cve.org/CVERecord?id=CVE-2026-24249](https://www.cve.org/CVERecord?id=CVE-2026-24249)

## Related threats

- [NVIDIA Megatron Bridge deserialization vulnerability](https://junglewise.ai/threats/cve-2026-61779-nvidia-megatron-bridge-deserialization-vulnerability)
- [NVIDIA Megatron Bridge deserialization of untrusted data](https://junglewise.ai/threats/cve-2026-61778-nvidia-megatron-bridge-deserialization-of-untrusted-data)
- [NVIDIA Megatron Bridge unsafe deserialization](https://junglewise.ai/threats/cve-2026-61777-nvidia-megatron-bridge-unsafe-deserialization)
- [NVIDIA Megatron Bridge deserialization of untrusted data](https://junglewise.ai/threats/cve-2026-61776-nvidia-megatron-bridge-deserialization-of-untrusted-data)
- [NVIDIA Megatron Bridge unsafe deserialization](https://junglewise.ai/threats/cve-2026-61775-nvidia-megatron-bridge-unsafe-deserialization)