CVE-2026-24240 Deserialization in Megatron-Bridge

High 7.8 Published Updated

An attacker can exploit untrusted data deserialization in NVIDIA Megatron Bridge to execute code, escalate privileges, tamper with data, or disclose information.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-24240?

CVE-2026-24240 is a high-severity unsafe deserialization vulnerability in NVIDIA Megatron-Bridge, published on 1 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

NVIDIA Megatron Bridge for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure.

Weakness: CWE-502

Which versions are affected by CVE-2026-24240?

It affects 1 product.

Products include Nvidia Nemo Megatron Bridge.

How do I fix CVE-2026-24240?

No fix has been published for CVE-2026-24240 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2026-24240 being exploited?

There is no known exploitation of CVE-2026-24240 in the wild and no public exploit code.

Sources

Also known as GHSA-6j24-28g2-2556.

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